First time having sex started birth control 3 weeks ago. bleeding during sex? ii bled the first time and after that i was fine, why now am i bleeding

New Pills: And adjustment sometimes takes a while and will cause irregular bleeding in some people. It normally takes 3 months to adjust to the birth control pill for many women.

Sex and pills: The first act of vaginal intercourse can cause bleeding due to tearing of the hymen. Bleeding during the first 1-3 packs of pills is normal even if taken correctly. Bleeding is even more common if pills are missed or taken late.