Thread: if no egg is produced, why is there a menstrual period?

Birth control mimics pregnancy which is what they mean by no egg being produced. The body is tricked into thinking that an egg has already gone through ovulation and fertilization (this is done by the various hormonal levels). When those mimic chemicals are gone-the placebo/inactive pills, your body is snapped back into regular mode and period begins. So yes technically speaking you are not ovulating due to so much inhibitory action from birth control. Even if your body does manage to ovulate the regular way while on the pill the other action of birth control is to make a very unfavorable endometrium environment for implantation, the ovum is inhibited from even traveling down the fallopian tubes, and the cervical mucosa is really thick preventing sperm from getting very far.