Dr. Tabatha Barber explains how hormonal birth control works: synthetic estrogen and progestin shut down your body's natural hormone production by blocking the hypothalamic-pituitary-ovarian axis. The period you get on the pill is actually a synthetic withdrawal bleed, not a real menstrual cycle.
Birth control pills, along with, like, the mini pill, the NuvaRing, the Nexplanon rod, the depo shot, Those are all synthetic estrogens and synthetic progestins that destroy your health. What they do is they stop your own hormone production so that your brain and ovaries are no longer making the hormones that they make. And talk to each other and create a cycle for you. You take synthetic hormones, it shuts down your own production, your own HPO axis. So that's why you get usually get a bleed. But it's a synthetic response to those hormones.
