I'm so worried I had sex with my boyfriend last night he wore a condom and he pulled out, I was expecting my period in the next 2 days but sometimes it comes earlier, when we checked the condom it was full of blood and then right after I got home I had quite a bit of blood on my underwear I figured I got my period so I put a path on and went to sleep but this morning I went to checked and nothing it stopped , its been a whole day and I still haven't gotten anything what happened? I'm scared I'm suppose to start taking birth control this month but should I start taking it or not?