SAmeera--I'm 5'4", and I think I started to look preggo pretty early--but that's because I was putting on some extra weight from the IVF drugs. I also had to do a special diet once I was preggo (only for a couple weeks) to get my ovaries to start getting smaller (I guess some twin pregnancies, there's a tendency for ovaries to get too big? Or twist?) Anyway, eating lots of eggs and drinking gatorade helped me pack on weight FAST!!! I think my belly was popping out around 10 weeks. Just a tad, but it was enough that I couldn't "hide" the truth. I also REALLY wanted a vag. delivery, and my doc was willing (although hesitant) until my son turned breech. Then it was an absolute c-section. I ended up developing pre-eclampsia, which is why I delivered when I did (just a day shy of 37 weeks). With my BP up, a c-section was absolutely necessary. I have a good friend who did deliver twins vaginally. It's totally possible, but it really depends on your situation. My guess is, that since you're so small, your doc may insist on a c-sec. But, it's worth trying for the other way, if you can. Just my opinion. Good luck!
As for weight gain--I, just like J-LO, gained about 45-50. Yes, you saw that right. that's a lot of weight for a short girl. But, I exercised through my whole pregnancy and was pretty good about what I ate. Like Kholtan, no stretch marks for me either. BUT, I think that's a genetic thing. My mom doesn't have them either. I did rub lotion on my belly sometimes, but not enough for it to really matter.
Holtan--good thing I like you, or I might have to hate you!

You didn't have to wear maternity tops? OMG--I'm so glad I know that now that I'm normal size again! I might have had to jump off a bridge! Just teasin'....you're blessed with good genes, girl! No boating for us this weekend. We won't be back to the lake until after the big bday in two weeks. TWO WEEKS!!!!! HOlY COW----I'm starting to freak!