I am worried that I'm pregnant?

My boyfriend and were grinding, not having sex. His penis was somewhat near my vagina. He didn't orgasm there, I went down on him ten minutes later. I had experienced excess vaginal secretion leakage on previous days, but it had mostly died out earlier that day. This leads me to believe I finished ovulation earlier that day. Him and I have been fooling around everyday for a week, but not sex. I've been giving him blowjobs and handjobs, so he has been orgasming a lot. This would make me believe his sperm count would be down. Would this hold true in pre-orgasm? He isn't sure when his pre-orgasm occurred that night, but we are both worried since his penis was near my vagina that it could have somehow gotten in. Would I still have been fertile if ovulation ended that day? Would his pre-orgasm have had sperm if his sperm count was down? What are the chances?