help!!

So the first day of my period was Nov 14 (2 days ago) I also had sex that day and my boyfriend came inside me. I was going to restart my birth control pill bc I missed it all of October because stupid me forgot to bring it on my trip to Michigan. Anyways if there's a possibility of me being pregnant should I wait on taking the pill until I know for sure? I DO NOT want kids right now I am only 20. BUT with that being said I am pro life and would never abort. If I was pregnant I would keep my child. So I guess my question is should I wait to restart my birth control just in case...because if I take it that will hurt a pregnancy right?