Super confused

Nina • Sat, Feb 20

Okay so I should have like 12 more days until my period. I am on birth control but I missed several pills in the first week so I started the second week. I missed one last night, and this morning I got super bad cramps and it looked as though I started my period because it wasn't light spotting. I have a pad on and I don't see any more bleeding. What is going on?