Menstrual Cycle Day 13publishdate
What is happening internally?
Estrogen peaks, due to the fully developed and large follicle. The hypothalamus sends releasing hormones to the pituitary gland, (which sent out a sudden burst of follicle stimulating hormone (FSH) 12 to 24 hours ago), signaling to now send out a burst of lutenizing hormone (LH). This will prompt the mature follicle to burst within the next 24 hours. The uterine lining is thick, and ready to house a fertilized egg.
Cervical fluid becomes clear and stretchy - similar to the appearance and texture of egg whites. The vagina may feel wet or lubricative. The cervix rotates upward, becoming soft, and the "os" is open. This stage is known as S.H.O.W.-Soft, High, Open, Wet. Basal body temperature is low. You may be feeling ovulatory twinges or pain, in the area of your ovaries. Your libido is at an all time high for the month.
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