I'm 23 weeks and haven't gained any weight (I'll discuss this with my doctor in 2 days at my appointment-no throwing up and I eat a lot). The 1st picture is from 5 days ago and the one in grey is from today. It may not look like a big difference but you can tell my boobs today look bigger because my stomach is significantly smaller. What causes my tummy to disappear??? Anybody else have this?