OK, this is my 3rd baby, and I seriously feel like my belly is already popping out. I didn't have to consider maternity pants until at least 14 weeks the last two times, and here I am at not quite SEVEN weeks and tonight I had to unbutton my jeans to go out! (I wore a long sweater.) I'd assume this might be normal - I'd guess by now my uterus knows what it needs to do (not to mention my abdominal muscles are not what they once were)...but it's a little scary it's happening this SOON! I'd love to hear of others' experiences!!