So I ran out of pills during my period, but didn't care much because I rarely take the green pills unless my period is a little late. After I my period was done I had run out of the white ones for a week and so didn't take any birth control, I had just renewed my prescription and started on the pills again. I had been in 4 days when I had unprotected sex and then 2 days later had weird constipation and cramps, and started bleeding a brown discharge and then is now a considerable amount of bright red bleeding. I'm not sure if it's more serious than a side effect or if I'm pregnant.