Someone please ease my mind.

OK, so I got drunk at a party and the next morning I woke up and found out that I had had sex with a "friend" (for about 3 years until now, that I thought I could trust) who wasn't drunk pretty much al night, long, which I don't remember it all. It's been like a week and two days and now I'm spotting and I'm worried I might be pregnant. I'm not on birth control and he didn't use a comdom but he said he didn't cum any of the times which I find hard to believe, but he insists that he absolutely didn't cum inside me. I'm worried about that, but especially pre-cum, especially because it was the night before the day that I was supposed start ovulating.