The term "post-pill" typically refers to the phase following the use of hormonal contraceptives, such as birth control pills. Hormonal birth control works by preventing ovulation, thickening cervical mucus, and thinning the uterine lining to decrease the likelihood of pregnancy.
If a woman has recently stopped taking the pill, her body might take some time to adjust back to its natural hormonal cycle, which can affect menstrual regularity and fertility. This adjustment period varies from woman to woman.
If you’re asking about the post-coital contraceptive or “morning-after pill,” this type of contraception is used after unprotected intercourse to prevent pregnancy. It can work by:
- Delaying or inhibiting ovulation: Preventing the ovary from releasing an egg.
- Preventing fertilization: Making it more difficult for sperm to reach the egg.
- Preventing implantation: Altering the uterine lining to make it less suitable for a fertilized egg to implant.
The morning-after pill is not intended to terminate an existing pregnancy but to prevent one from occurring after intercourse. It is most effective when taken within 72 hours after unprotected sex, although some types can be effective up to five days later.
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