Fat or bump?

Hey guys! So I found out I'm pregnant  on Friday and according to the app I'm 5w6d. Before finding out I was usually going to the gym 4/5 X a week. The left picture is how belly is sucked in ( but I always walk like that trying to keep my muscles tight) and the right picture is letting go. I mean before I found out I would stick my got out to see how I would look pregnant 😂😂😂. But I haven't been to the gym for the past 2 weeks because it is just to dang cold. Now I'm paranoid I've gotten fat... 😏 Do bumps show this early in the pregnancy?