The good thing about having a baby in the fall and winter is that you can hide yourself in large cozy sweaters until your body gets back to its regular size. I love this Splash-Of-Color Cardi ($168 at Anthropologie) because you can wear it untied while preggers and keep wearing post-partum forever. The multi-colored stripe goes with anything and the ruffles give it a girly touch.
Here are more great cozy big sweaters:
Cozy Trio Cardi ($128 at Anthropologie)
Nestle & Nuzzle Cardi ($128 at Anthropologie)
Pretty Perimeters Cardi ($118 at Anthropologie)
Letizia Cardigan ($118 at Anthropologie)