am i pregnant?

So i’ve been on the pill for about 4 months now. 6 days ago, I had unprotected sex with my boyfriend and he came inside of me, the next day, 5 days ago, we had sex again and he came inside of me again. Fast forward to now, I’ve been feeling a little gassy and i’ve been burping more than usual. My stomach feels a little off but other than that i have no symptoms of pregnancy. Is being gassy/bloated a symptom?