My stomach feels weird

Mayra • Third time mommy to a beautiful baby girl Rosalia , Thalia , & Viviana we are adding our last baby and this time is a BOY 💙 in May 30, 2023.
I don't know how to explain it but my stomach flat and I feel like I have gas but I doesn't want come out lol . I'm sorry lady's but that how it feels. And then it feels like I'm hungry at the same time . Yesterday and today been weird both days my stomach has been flat . I'm 14weeks and 2 days . I just had ultrasound last Monday baby look good . But any ways do you lady's have a guess what this feeling is ?