FWIW, I always looked small, too, but far bigger than I did with my singleton (I barely looked 6 mos pg the week before she was born)--so I was at least thankful that people could recognize I was pregnant!
Cindi, mama to Hannah (7/04) :, Eli & Sam (6/06) :
your belly looks adorable! i think it's a function of how you carry -- i carry straight out in front. i looked like i was carrying twins during my singleton pregnancy. at 26 weeks i was 42 cm. it slowed down after that, though.
maybe you won't get stretch marks & twin skin, the lovely belly accessories i have.
SAHM to F & P, : fraternal twins born 3/05, : I, born 12/07 & at 5 weeks in July 2009