I started on birth control (microgestin FE 1/20) about a week before I was supposed to get my period. I took it everyday about the same time and missed my period by 17 days. I was sexually active but I used a condom until 3 days before i got my period. He never ejaculated but it did go in for a while. When I finally got my period I had really bad cramping in my pelvis to the point where I couldn't walk. I went to the bathroom and a squishy grey substance came out of me along with some blood. I don't know if that was just a lot of uterine lining or something else. My period is very light so I know that the birth control worked. I'm just confused on what came out of me.