My boyfriend and I were messing around and I gave him a blowjob and he had precm and I licked it off and continued for a bit. I made out with him afterwards with tounge and I'm sure I swallowed at least once during or after the blowjob, then he went down and gave me oral and stuck his tounge inside of me, I am very nervous that he impregnated me from that? What are the chances of getting pregnant from that? 2 weeks after I got pink vaginal discharge then it turned dark brown, then it then turned into a normal period with clots and heavy bleeding so I knew it wasn't implantation bleeding but I didn't know if I was pregnant , would that have been my last period? It has been 30 days since that happened and I have been very paranoid, and worrying like crazy, everyone has said its all in my head and I can't get pregnant from it but I still feel that I am. I have been becoming nauseous lately. Is there a possibility of pregnancy from this situation?