Upset/Gassy Stomach After Sex?

Hi! my boyfriend and i have lost our virginity about 2 weeks ago to each other. I’m on the pill birth control + we use condoms/water based lube to try to eliminate any chance of breaking a condom.

After sex, my stomach always feels gassy. Almost like bloating but not quite.

We had sex for the second time on ovulation day, but my birth control that I’ve been taking for 2 months is preventative for ovulation. I have ovulation symptoms though like sore breasts.

And I have the gassy feeling again! I also get baby cramps. Not exactly cramps, but similar.

Not sure what it’s about. Any ideas?