Birth control

Natalie

Hey everyone,

So I just started birth control for the first time a few weeks back, and I’m not really sure how the menstrual cycle is supposed to be working. My pack came with 21(3 weeks) of hormone pills and 7 iron pills. As of now I am scheduled to take my 3rd of the iron pills tonight but I haven’t gotten my period yet. Is this normal? And am I still safe to have sex? Or should I be contacting my obgyn to ask why I haven’t started?

Thanks!