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Implantation of a Fertilized Egg
Implantation of a Fertilized Egg
(59 Comments)
When trying to conceive, it’s sometimes hard not to scrutinize every sign and symptom you feel for possible signs of pregnancy. One of the most tell tale signs of pregnancy for many women is implantation, or when the fertilized egg implants into the lining of the uterus. But when exactly does implantation occur, and what are the signs of implantation?
What is Implantation?
Implantation is the act of the fertilized egg attaching to the uterine wall. Once fertilization occurs, the fertilized egg remains in the fallopian tube for 3 days. It then enters the uterus where it gets very close to the endometrium (lining of the uterus) and begins to invade this endometrium to implant.
When Does Implantation Occur?
Implantation typically occurs 6 to 10 days after ovulation, or day 20 to 24 of a menstrual cycle. However, it can happen a few days earlier or later. In an average, 28-day cycle, ovulation occurs on day 14 (the first day of a period is considered day 1 in a cycle). Once fertilization occurs, the egg stays in the fallopian tube for 3 days before entering the uterus and begins to implant to the uterine lining.
What are the Signs of Implantation?
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Implantation is usually a quite gentle process, with very few symptoms that can be felt or noticed. Most symptoms are usually detected or diagnosed as implantation once a pregnancy has been confirmed; that is, once you realize you’re pregnant, certain symptoms you might have noticed a few days prior will match up to those common to implantation.
That said, following are some typical signs of implantation.
- A very small amount of spotting or implantation bleeding may occur for a short period of time, around 7 to 10 days after ovulation has taken place.
- If you are tracking your basal body temperature daily, you may notice a second thermal shift (rise in temperature) that occurs about 7 to 10 days past the date that ovulation has been confirmed.
- You may also notice an implantation temperature dip that lasts for a single day, usually around 7 to 10 days past ovulation.
While these signs can be a promising indicator that fertilization and implantation have taken place, they are not confirmation.
Just because you may have felt some of these symptoms, you may not necessarily be pregnant. Only a positive pregnancy test or a blood test performed by your doctor can confirm that pregnancy has occurred.
On the other hand, don’t despair if you haven’t felt or noticed any of these signs of implantation. Very few women actually notice implantation, and not feeling implantation does not mean that you are not pregnant. If you think you might be pregnant, be sure to make an appointment with your doctor to confirm a pregnancy.
Teresa Shaw is a professional editor and freelance writer with a degree in English and journalism. She writes about motherhood, travel, and cooking, among other topics, for a variety of print and online markets. She enjoys spending time with her husband, daughter, two cats, and dog. Visit her online at http://teresawrites.wordpress.com
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Reader Comments & Discussion
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59 Comments | Add Comment
sunita, chicago,usa
08/24/2010 8:02 am
Hi..i am having my periods regularly for 30days,we doing intercouse from day7.now day18 till now ididn't get any symptoms.in how mmany days i will know that am i pregnant.. will i b pgm ?
Rhi, BB, Florida
08/19/2010 10:54 pm
Hello. My fiance and I had sex on day 9 of my cycle. I'm not sure how long my cycles really are, only last month I know it was 30 days. We are both 20 years old. No birth control, no condoms and he came inside of me. I know there is always a chance of being pregnant, but I was wondering how much of a chance would you say? Is it possible to ovulate much earlier and still have a 30 day cycle??
Kendra, Texas,USA
08/17/2010 2:40 am
So my husband and I had unprotected sex the day I had my IUD taken out June15,the doc said I was suppose to start bleeding right away(but I never did).I had a very scary/heavy period the following week wt big clots lasting about 8 days. In July I never got a period, just very light pink discharge when I wiped on July 2&3. I have read scary stories about miscarriages, so this month got me thinking bc I had mild/heavy bleeding that was bright red,but never did I experience cramps just a sharp pinch on my right side.Should I take a test or wait till next month? Reason being,idk if my cycles are still irregular due to my IUD:-( >my husband and I never use protection,have sex just about every day of the week,and he ejaculates in me all the time< answers pleeezzz)-;
sarah, nigeria
08/14/2010 11:26 am
My lmp was on the 16th of july 2010. I had sex with my bf on the 2nd and 4th of august without protection,and 4 days later I started experiencing brown spotting for some days now. My next period is to start on the 13th but its not and I'm still seeing a little brown spotting. Am I pregnant?
Michaela, Florida
08/13/2010 2:19 pm
August 7th me and my man had unprotected sex for about 15 seconds. He was dry completely when be stuck in and dry when he pulled out. August 8th was my last period day and I don't ovulate until the 16th. I took emergency contraceptive pills within 72 hours after intercourse. I have started experiencing headaches and frequent urination and when I got up this morning I had very light brownish discharge. Could I even be pregnant since my ovulation process hasn't even started yet?
Dalia,M, Florida
08/13/2010 9:39 am
I've been having the same problem. I've been having mild cramps on and off and sharp pains on my right side that come and go. My PMS is irregular, it is and 35-39 days. So I'm not sure if it's to early to feel symptoms. Is this normal to feel if I am preggo?
Spencer Clark, LA, USA
08/12/2010 4:58 pm
This really worked for us: Find out when you are ovulating, Have sex and make sure she has an orgasm. When she orgasms something dips into the pool of sperm making ferilization more likely. I read this some where. I know it doesnt sound intelligent but i swear on my unborn it works.I just forgot the medical terms. BUT 1) sex during ovulation 2) make sure she orgasms first then try to follow as soon as possible. We were pregnant within 1 week this way.
ash, florida
08/05/2010 11:34 am
I had sex 7 days before my period and at my periods day i am finding spotting does it mean am i pregnant
Ashley, Ohio
08/04/2010 11:22 pm
I have a 36 day cycle and 2 beautiful boys. Second boy was "created" two days before AF. He's now 15 months old. Hubby and I were unprotected the day after my period and on day 10. Five days later I was feeling nausous. 7 days after unprotected sex, I started mild cramping for about 7 days with headaches and nausia. I "feel" pregnant" even without a test. I'll test next week, but pretty sure it'll be positive. Good luck to all who are trying.
Trisha, Illinois
08/02/2010 6:13 pm
I had a tubal reversal on the 25th of February 2010. My husband and I have been trying to conceive these last few months, but no luck periods have been like clockwork. Ok so fast forward to the future. LMP on July 10th,2010. Normal, lasted a few days nothing out of the ordinary. Now I have the odd period of every 21 days instead of 28. On July 28th what I thought was my period was just spotting it lasted maybe a couple hours not exactly sure, then poof! It vanished. Now here we are five days later the spotting is back. WTH??? Nonetheless, I did have a doctor's appt last Thursday both blood and urine samples were given. Here we are Monday and I got my results....but no PG. :( Is it too early to tell? Has anyone had this experience? Or is this just wishful thinking???
Keeddy, richmond, VA
07/16/2010 3:24 pm
My . started on the 30th of june which means i ovalate on the the 12_14 me and my boyfriend had sex on the 9,10,11,12,13,14 on the 15 i woke up cramping so bad letter dat da i started spotting and now im bleeding lightly whats going on my . Isnt due for another two weeks
Nichola, Scotland
07/12/2010 9:01 am
It seems everyone keeps asking the same questions!! I think that when trying for a baby you are more in tune with your body because you want to be pregnant. Things you don't notice when you are not trying. I read an article recently on imaginary symptoms because you really want baby its ur minds way of playing tricks on you although I do believe some people do genuinly have symptoms although in most cases its all in the mind!! I too am trying and have been feeling different but I don't know if its bcause I want it so much!! Won't find out for another week!!
kristina, alabama
07/08/2010 3:28 pm
I just have a question. I know it says that implantation occurs 6 to 10 days after ovulation. What I need to know is, if I Ovulate 10 days before my period,Would the egg have enough time to implant before my period starts? What if I get pregnant but the egg does not have the lining of my uterus to implant into. I have one son and my husband and I are trying for another. I got pregnant really quick the first time but now it just isn't happening. Someone please answer my question.
paula, england
06/28/2010 5:06 pm
I am on day 36 of my cycle and have had cramps for around 4 days,and have been peeing loads, each time i go to the toilet i expect my period to be there but its not. i dont know too much about my cycle but dont want to waste money on a hpt if this is no early or the symptoms are not right ive had plenty of BFN's in the past
Shirly, Uk
06/23/2010 6:37 am
Hi I have a 31 or 32 day cycle. My last period started June 1 or 2nd not quite sure. I had sex on 19th June. I feel like I'm getting period pain but don't know wether this is due to my period early July? I have also been getting pains in my side like I have a stitch. It's too early to take preg test and I'm so curious to know wether or not o could be! Any advice x
har, Helsinki,finland
06/21/2010 10:58 am
Hi,I had hystroscopic surgery on 14th.06.2010.Stopped bleeding on19th,I had sex on 20th,21st(which was my ovulation day)had some little bleeding on the 20th,had sex on 21st no bleeding,but just now i feel backpains,headaches, could i be pregnant already?
mavis, south africa
06/21/2010 7:52 am
My last period started on 3 june this month.i have regular menstrual cycles of 28 days.i have been constantly using condoms with my man since june 2008,however,on 12 june this month i decided to ride on him (on top) when he was not wearing a condom until i climaxed but he did not ejaculate .on 19 june he put his penis in me without a condom and i felt some semen come out from him into my v.yesterday,20 june,we used a condom but when we were finished,he removed his penis from me without holding the condom and some sperms escaped and touched my pubic area and i quickly took a bath after that..well,the same day yesterday,iv been cramping in my abdomen.do you think im pregnant from the act of 12 june?
Nikki, FL
06/12/2010 8:38 pm
Olga, Don't stress it! Seriously ... stress can hinder getting pregnant. And remember, you can't rush nature.
I didn't think I could get pregnant (having had a miscarriage back in 2001). My husband and I tried for 2 years and I stressed it because I thought it was me (he already has children). 6 weeks ago I had my first child. Find patience, it'll happen when it happens.
Olga, NJ
06/01/2010 10:11 am
I concieved my first with the first "innner". He was born healthy and beautiful August 21, 2009. My son passed away due to SIDS October 7th, 2009. I was full time breastfeeder and it took me 6 weeks after his death to get AF again. My husband and I desided we wanted to try again. At first we started just"hgoping it happens" then I even tried Vitex which caused me to skip a period in February 2010... and now its June.... my perios is due June 8th....and Im already feeling discuraged. Im scared that I cant have more children.... I want a baby so bad...and I know another bay will NEVER replace my beautiful son.. but I just want to be a mommy again so sos much... I dont know what to do.... why hasnt it happened yet?
Rebecca , Iowa
05/27/2010 12:42 am
My husband and I have been trying for baby #2 for only two months now. It took us a year to get pregnant with our first. This time around, I'm using a fertility monitor and when ovulation is detected (and high fertility for 2 days prior) we have sex daily (usually days 14-19). I have a 35 day cycle, so when I began to experience heavy cramping 5-6 days after ovulation both months I assumed it could be implantation. Both months were negative results though. What could be causing the drastic cramping mid-cycle well after ovulation?
hello kitty, ca
05/26/2010 10:32 pm
I had a miscarriage last year around this time it really hurt me and my husband we have been trying to have another baby but its just not happening:[ i feel; so bad because i think i cant give my babe kids.. :[ we both really want one i used the ovulation calculator and had sex every other day it told me to i never used one before, do u think it'll will help us?
katie, florida
05/26/2010 1:57 am
I'm 23,married been trying to get pregnant....I've been taking prometrium because my hormones were irregular...been ok with my period lately I had my last cycle may 4th and the one before april 29th .... Took the pill on the 17th of may 14 days after my period , I have to take it for 10 days. Monday the 24th I has a discharged dbrownish color..went to the bathroom and wipe myself and it was redish...been having sex with my husband since my period ended...but just monday I had tht spotting/discharge only for a lil bit...had headaches and now cramping also constipated..I'm not supposed to get my period till next week...could I be pregnant?
Eco, Philippines
05/24/2010 11:09 pm
This article is very valuable. Still I have questions regardiong my girlfriend's status. We had an unprotected sex during the first day of her mentrual period.Her mens stopped on the third day with headache too.this was followed by rise in body temp on the fifth day after sex. Is it possible that shes preggie?
Melissa, WI
05/20/2010 12:43 pm
To Nancy--When I was pregnant with my son, yes, I had symptoms VERY early. I have a 31-day cycle. Had sex on 13,14,15,16. Felt symptoms by 19 & 20 (I was on fire!, cramping, headaches, bloating, the works!). Was positive I was pregnant, but didn't test until day 31 out of fear of disappointment. Test was positive, but even on day 31 it was very faint, so I'd say give it a little more time then test again. Good luck!
nancy, fl,usa
05/19/2010 7:14 pm
My LMP was 4/28. I took several ovulation tests and tested positive on the 13. My husband and i had sex on the 10,11,12,13,14,15, & Although today is only the 19th, i woke up this morning at 5am and have urinated AT LEAST 20 times today, NO EXAGGERATION. Ive also had lower back pains and ovary pains. I took a HPT and it came back negative, however, im not supposed to get my period until next friday. Did i take it too soon? Did anyone experience these issues so early? When should i re-test?
Princess , India
05/19/2010 3:46 pm
Hi i am hoping someone can help me figure this out. I got my period on the 24th of jan 2010 then again on the 28th feb 2010 and then april 6th so am thinking its from the day it finishes that its starting. i have like a 6 to 7 day cycle. Anyways during April 2010 i got my periods on the 6th and have spotting for like a day only when i used the restroom on the 27th April which was light red and then 28th April was brown. Its now the 19th of May and i still havent got my periods can i be pregnant? I have taken a few pregnancy tests all are coming back negative. I am 28 married and i hope am pregnant but if anyone can give me any insight of what you think is going on would be really appreciated
Vicky, England
05/18/2010 4:17 pm
To nick- australia, a dip in temp, then a rise the nxt day could be implantation, I hve literally just read this is a sign of implantation and only would know if charting. Hope that helps. Did u find out if you were pregnant. Xx
Katie, IA, USA
05/16/2010 11:31 pm
LMP was on April 12th 2010...my breasts started hurting really bad and I thought maybe I was pregnant...so I took a pregnancy test on May 7th---was supposed to start on May 9th so I took one of those early pregnancy tests...came out negative...so I waited till my period was due and took another one the day after...negative...by breasts still hurt and i had missed my period..i am usually exactly a 28 day cycle give or take 1 or 2 days...sooo...i waited one more day and took one on the 11th...positive! WHAT?! HA! so i took like 3 more and I am still pregnant! =) 5 weeks tomorrow....nervous tho..i took like 2 pregnancy tests before the night i was to got out drinking and came out negative...so I drank..ALOT..and i am hoping that is not going to affect anything!! any idea?
SACRED GUESS, CA US
05/15/2010 7:37 am
MY PERIOD WAS ON THE 16TH OF APRIL I HAD SEX ON MAY 2ND. IS IT POSSIBLE I COULD BE PREGNANT?
KERI, NASHVILLE, TN
05/14/2010 6:47 pm
MY LAST PERIOD WAS APRIL 17TH AND I AM PREGNANT! I JUST FOUND OUT AND I AM HAVING SOME CRAMPING SO YES IF YOU ARE LATE THEN TAKE A TEST!!
Lydia, Ma
05/08/2010 6:12 am
Me and my boyfriend really want to have a kid and my LMP was april 16th i think it only lasted like 4 days, according to my calculations and that of ovulation calculators.. I started ovulating from the 26th of april-May 6 we had sex every other day the 26,28,30 or the 1,3,and on the 6th twice of those 10 days.. and i read that sperm can last a couple days inside the woman body while ovulation is occuring.. Do you think my chances of being pregnant are high?
Sarah, Wisconsin, USA
05/05/2010 11:36 pm
My first day of period was April 17th. My ovulation was April 28 through May 2nd. We had sex April 30, May 1 and 2nd. The night of May 4th Ihad a harp cramp in my lower abdomen. Can I be pregnant?
KEYBABY, ATLANTA
05/05/2010 3:58 pm
IF ANYONE COULD HELP ME PLEASE I WOULD LOVE IT. OK I OVULATED ON THE 14TH OF THIS MONTH AND HAD A LITTLE SPOTTING ON THA 17-21 BROWN AND SOME PINK MY PERIOD WASNT DUE TIL THE 28TH OF THE MONTH AND WHEN IT CAME IT WAS VERY LIGHT IT WAS PINK AND BROWN AND VERY LITTLE RED WITH LITTLE CRAMPS I DONT HAVE ANY SYMTOMS THAT I KNOW OF AND IM VERY NEW AT THIS IF ANYONE COULD TELL ME WHAT THAT MITE THINK IT IS OR ANYTHING PLEASE COMMENT BACK AND LET ME KNOW WHAT I SOULD DO SHOULD I BE WORRIED I WOULD REALLY LOVE IT THANKS
Rex, New Mexico. US
05/05/2010 12:19 pm
I stopped taking BC after my period which was on April 1. I am now about 7days late on my period I went to doctor yesterday and pregnancy test came out negative. However, last week I had period cramps and my ovary hurt. so confused can anyone help??
KKIM, SC, USA
05/05/2010 5:34 am
My LPM was on March 27 2010. I had an episode of bleeding on April 27th 2010 which only lasted a few hours. I seen blood when I wiped. It never showed in my panties. It went away a few hours later and have not returned since. Ive took "Early Response" pregnancy test twice and it came back negative. The blood I saw in my panties may have been "implantation spotting"..which usually appears about a week after conception. So if thats accurate and I am indeed pregnant, I conceived around March 16. So I am not 3 weeks yet. Could this be the reason I tested negative??? I am waiting another few days and then test again..The wait is excruciating!!
Aisha, NewYork
05/01/2010 8:54 am
Hey, I had my period on 4/6/10 -4/11/10 and ovulated on 4/17/10 me and my partner had sex 4/17-4/18/10 I started having pregnancy symptoms on 4/23//10 and went to my doc 4/28/10 to measure my hcg beta level(blood test) and it was less than 2 now today 5/1/10 af was due and no signs of it is it possible I am pregnant but took the blood test to early???
HM, OK, USA
04/28/2010 2:31 pm
To Jody,
It sounds like your last period WAS a period (which means you were not pregnant) and if you had a negative pregnancy test then you were either not pregnant or it was too early for the test to work properly. That said, I would seriously reconsider having a child with someone if you are not going to be faithful to them. If you can't handle the commitment involved with a monogamous relationship, can you handle the responsibility of being a mom??????
jens, kenya
04/28/2010 4:33 am
This all thing is quite confusing
Jody, Uk
04/23/2010 11:44 am
Hi please help me:-(
I did a test 4 days ago it is positive was not due on until about now 4/5 days on from positive test , was a clear blue conception indicator I did 2 both said 1-2 wks since conception. Did 1 today 4 days later says 2-3 wks since conception . Here is the problem :-( I had sex all through from my lst period on the 25th march now got a positive result Which is brilliant ad we are trying but on the 5th march I made a big mistake and had intercourse with someone else my period before was the 14th feb so would of been ovulating around the 5th :-( I'm worried now that my period on the 25th which was late was not a period? What if I was pregnant weeks ago? Although I did a test a week ago it was negative, only now getting positives, I regret what I did so much I don't know what to do I don't know if the conception indicator is accurate? please take the time to help me :-( I'm feeling sick with worry x
lissa, uk
04/12/2010 11:07 am
To meg in kansas..from what i gathered implantation bleeding may or may not happen at all. doesnt mean yr not pregnant tho. the only 'true' test is a pregnancy test once youv missed yr period. x
Kitty Hampton, Illinois
04/08/2010 8:47 pm
The "Could I be pregnant?" questions crack me up. If you had unprotected sex, yes, you could be pregnant. But having random symptoms doesn't mean that you are KU. It probably just means you're paying attention more than you were before.
hoping to be, az
04/07/2010 2:48 pm
Mimi,california
are you pregnant?
Texas, Usa
04/01/2010 10:05 pm
Ur letenal phase is not long enough try vitamin b6
Keda, California
03/29/2010 6:06 pm
I had my period 3.22.10 it was over 3.26.10 my ovulation starts 3.28.10 i have my periods every 3 weeks my boyfriend came inside me once and the other 3 times it was around my vagina we really want a baby so we had sex 3.27-28.10 around ovulation do you think i can be pregnant
Ellie, USA
03/18/2010 8:52 pm
Most women do not experience implantation bleeding, in fact, it is very rare. Most people don't feel symptoms of pregnancy until at least 10 days past ovulation. That is ussually the bare minnimum. It is possible that you ovulated earlier than you thought! In that case, take a HPT in about 3-5 days. There is only one way to tell if you are prego, a test!! Until then, Baby dust to all of you:)
Nic, Australia
03/04/2010 7:18 pm
A question....I track my Basal Temp in Celcius. What is the usual fall in temperature when implantation occurs? eg. I consistently have 36.9-37.0 in the luteal phase. It dropped yesterday to 36.7 and is back to 36.8 today. Any thoughts?
sammie, ny usa
03/01/2010 12:14 pm
Ok so i got my period feb 20 - 26th about. and either that day or the next day that my period ended ended me and my boyfriend had sex and he cummed inside of me. and a few days to a week later i woke up with a little bad cramping in my lower stomach and i had very little brownish discharge. and it happened 2 days in a row. maybe 3. remember this was a little bit more than a week after my period ended. could that be implation bleeding? or is it too soon to experience that?
Morales, VI
02/14/2010 9:39 am
My pms was 01/22-26 ovulation was between 02/2-6 implantation was suppose to occur the 12th but didnt probably did but didnt watch i urinate alot naseau and lil headaches am i prego..trying for months
China, NY,USA
02/10/2010 10:26 pm
My LMP was 1.10.10
my partner & i had sex on 1.29 & 2.1
i have a PERFECT 28 day cycle. which means iwas suppose to get my period on 2.7.10 - which never came.
could i be pregnant?
alma , united states c.a
02/08/2010 9:26 pm
I had sex with my partner two weeks ago without protection..i had sex twice that night and he came on me twice......a week after i started urinating alot..and on the 2nd of febraury i just had spotting but the thing is that i just spotted one..and one the 6 i started feeling like pain in my abdomen..sorta' like cramps..not so painfull though.. and morning sickness..but not that bad..only one time in the night..and i get sort of exhausted earlier..i went to the clinic today and they said it was too early..could i be pregnant?
mimi, california
02/03/2010 9:18 pm
I am 38 years old. I started my ovulation Jan 18-21, had sex with my fiance every day twice a day from jan 15-18. 3 days later had a light pink color discharge. The next week started having headaches, fatigue, nausea. Now I was supposed to start my period Feb 3, I started having a light pink discharge when I wiped, and then 3 hours later a light brown discharge no flow just on the tissue. Could this be implantation?
saf, uk
02/01/2010 6:40 am
My last period was on 15.01. Me and my partner made had sex on 27th and 29th so its been 6 days I've had cramps for afew days and more then normal discharge could this be possible signs of Implantation or is it too early to tell. Can you get pregnant if you have sex a week before your due date? good luck to all
Keishae, Houston
01/30/2010 9:13 pm
Lisa,
Yes you could very well be pregnant. The same thing happened to me 3 years ago and I have a 2 year old.
lisa, Greer, South Carolina
01/30/2010 1:14 pm
I had sex two weeks ago the day my period was scheulded to come on. it came on but 2 days later it went off. could i be pregnant?
Brooklin, Florida
01/12/2010 3:09 pm
I conceived a few days before I thought I was supposed to start my period. For the last few days, I thought I felt signs of being pregnant like being tired, headaches, aching teeth...I thought I just knew.
So yesterday, I started bleeding. I dont know if its my actaul period or Implantation.
Are these signs just signs of pms? or am I pregnant?
Brena, Tyler,Tx
12/13/2009 11:40 am
Yes I'm concerned!!!! I'm tryna to get pregnant since Aug now and just a few weeks ago I've been feeling tired, and I've start noticing some bleeding. I have frequent headaches often I'm pose to Start my period tomorrow. What's goin on what should I do???? :( help
K, Dublin
11/27/2009 1:26 pm
I had some spotting and a headache for about a week, I have awful cramps, like period cramps...along with lower back pain, is that normal? I have 7 days until my period is due, so I cant do a pregnancy test yet, however, I feel rather tired and awful, my last pregnancy was different I didnt realise I was pregnant until I did a test!
Meg, Kansas, USA
11/18/2009 4:31 pm
In what week would you see implantation bleeding? It's been 3 weeks since my partner and I made love, should I have seen implantation by now?
Barb Freed, Florida
11/12/2009 9:40 pm
I have a question regarding what percentage of eggs that are fertilized are never make it to implantation. We heard that it is 50%, and that seems quite high. Where might I find this information?
Thank you!
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