I went to my local OB this week for my 18 wk appt (my 20 wk appt will be with my high-risk OB) & asked her if I looked "on target". I explained this app to her & told her I can see other women's photos & most of their bumps are bigger than mine at 18 wks. I'm a relatively petite person (I'm 5'2" & before pregnancy I weighed 118 lbs :S ) but my bump doesn't seem that big for where I think I should be & it made me worry if my baby was growing enough. She assured me that many women do this & to stop? She said everyone is different & we all have different body types.