Bloating Normal?

I just finished my period yesterday, and from day one to now I've had really intense bloating. Aside from the fact that it's uncomfortable and makes me feel unattractive, it's got me all weirded-out pregnancy-wise.

I know that, statistically, this is nearly impossible. But I'd still like to hear it from someone else, so here's my facts:

My only partner for the last three months has been a man with a vasectomy, which he got years ago, and has had no problems with it. My period started right on time a few days ago (exactly 28 days since my last one), and though it lasted only four days, that's been normal for me for the last few years. It started strong, then tapered out. I have no other pregnancy symptoms. Just the stupid bloating. Lots of it.