Maternity clothes

So I am still early only 7 weeks but I am preparing for what's to come and was wondering what everyone does for maternity clothes. Where do you find cute fitted dresses or clothes? Whenever I walk past the maternity section in a store I'm appalled at the clothes. They are kind of ugly! I found some stores online that have cute stuff but how do you know it will fit? I have heard of people buying a few sizes larger in regular clothes. Any ideas?