Could I Be Pregnant If...?

Hi,

Last night, my boyfriend and I had sex for the first time (first time for both, about 2 days after my period ended). It was a pretty good experience, although it was a bit start and stop since we had to change positions a couple of times (he's much taller than I am, and him on top wasn't working out for us) and we were just trying to figure it out. We used a condom, I am not on the pill yet because I'm taking antibiotics for acne, which would weaken the pill's effects. The condom had no holes in it. He did not cum inside of me, and I know this because he pulled out and I finished him off by hand. He then came, still wearing the condom. I did that because I am worried about getting pregnant. We got adventurous and wanted to do it again, which we tried an hour later. We still used a condom. He didn't cum, but he went flaccid and we stopped because both of us were tired. He said he didn't have pre-cum. If he did, it was most likely little. He didn't touch my vagina again before washing his hands. I'm feeling pretty paranoid about pregnancy. I can't really take an emergency contraceptive because he didn't cum in me at all. Is it possible that I'll become pregnant?