Help me please

Kayla • Always nervous
I had unprotected sex about 2-3 weeks ago but he didn't ejaculate. I usually don't have my period until the second week of the hormonal controls pills. I've been bleeding for the past 2 -3 days and it started on my last shugar pill and now I'm just now taken my last blank pill. What could be going on I've been off my period for about 2 weeks.