Tightness/bloating near abdomen area?

Ana

Hi everyone. I lost my virginity four days ago. We used a condom and it did not break. Now I noticed that whenever I try to suck in my stomach, it doesn't suck in all the way, and I feel a bit of tight pressure on it. It feels like a bloating sensation near my lower stomach and bladder. TThere's no pain, but it's just a weird feeling. Is this any cause for concern or is it common after the first time? Thanks for your help!