The theory that pregnancy and post-pregnancy (hello, Mombod, you bitch,) clothing can not be stylish is total rubbish. You don't need a wardrobe full of expensive (and hideously ugly) maternity clothes. They're going to be worn for more than the 9 months of your pregnancy (sad, but true), so you might as well invest in fabulous pieces that will give you happiness for years to come while flattering your current bump (and subsequent pooch).
Not to say all maternity-wear is bad. Make friends with those stretchy J-Brand waistbands, embrace side-ruched tees, & bliss out with maxi-dresses. Explore this section for all your pre and post-baby must-haves - from right-now necessities at H&M to forever pieces at Dolce&Gabbana.