Changes in ovulation period after taking birth control pills

A woman's menstrual cycle may change while taking birth control pills. Some women may experience side effects such as withdrawal bleeding, spotting, or breakthrough bleeding. These changes may affect their ovulation periods and prevent them from accurately predicting future menstrual cycles.

Birth control pills may also affect a woman's fertility. Some women may experience fertility problems after taking birth control pills, such as reduced sperm count, decreased sperm motility, or difficulty implanting a fertilized egg. These problems may prevent a woman from becoming pregnant or require a longer recovery.

While birth control pills may come with some side effects, that doesn't mean they can't be used. For most women, birth control pills are a safe and effective way to avoid pregnancy. Women are advised to talk to their doctor or pharmacist if they are unsure about how to use birth control pills, or if they want to try another birth control method.