Maternity underwear

ktpaladino

I'm 26 weeks and have gotten to the point where my regular undies are tight and they get bunchy cause my belly keeps pushing them down. Do I go out and buy a bigger size or get special maternity underwear? What is the difference really? Does maternity underwear cost more and where do you get it? Anyone have any that they really like? I usually wear VS cotton low rise briefs so I want something similar to them. I think I could get away with just going up a size in those and rolling the waistband down. Just curious as to what everyone else prefers and/or recommends.