Quoting Kesha Charlostin:" Im 5 weeks ."& you "finally" have a bump, lol. It's probably just bloat at this stage. Your baby is still the size of an apple seed. My best friend is 22 weeks & still doesn't have a bump.
Quoting Bean's Mommy:" What about the fact that your baby is deep in your pelvis...? I hate to burst your bubble, but it is physically impossible that that is your baby. Welcome to the joys of bloat!"