Implantation of a Fertilized Eggby Teresa Shaw
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 a fertilized egg, or zygote, implants into the lining of the uterus. Many women ask when does implantation occur, and what are the signs of implantation?
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 with the first day of a woman's period being considered day 1 in a cycle. Once fertilization occurs, the egg stays in the fallopian tube for three days before entering the uterus and begins to implant itself to the uterine lining.
Find out when implantation will happen based on your last menstrual period or ovulation date with our implantation calculator.
What is Implantation?
Implantation happens when a fertilized egg attaches itself 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 lining of the uterus (endometrium) and begins to invade this endometrium to implant.
What are the Signs and Symptoms of Implantation?
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 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.
The following are some typical signs of implantation.
- Implantation Cramps - Some women report having small uterine cramps around the time of implantation.
- Implantation Spotting or Bleeding - 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.
- Basal Body Temperature Rise - 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.
- Implantation Temperature Dip - When charting, you may also notice a temperature dip that lasts for a single day, usually around 7 to 10 days past ovulation.
Only a positive pregnancy test or a blood test performed by your doctor can confirm that you are pregnant. 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.
Implantation calculator - Find out when implantation will occur if you conceived
Calculate your approximate ovulation date with our ovulation calculator
Do you think you might be pregnant? Find out your due date with our due date calculator.
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