I'm 31, 20 weeks today with first DS and so excited I can hardly wait.
We had our scan on Weds and he looks perfectly healthy and lively, but is also one week bigger than gestation date would suggest (and I KNOW those are right, have been totally consistent up to now). Sonographer said plus/minus ten days was a normal variation, but my MIL has spent HOURS telling me in gory detail about the births of all ten of her children, average weight being 10lbs, and I'm terrified!
Also, this is going to sound terrible but I've obv become visibly pg in the last few days, and people keep saying 'gosh, aren't you big' or similar. I'm actually feeling a bit defensive about it - I'm the same shape all over except my bump, and I love my bump, but I guess 20 years of being praised whenever I lost weight has an effect, no?