maternity clothes for the bloat?

Reggie • pregnant with first baby at 29 years old (hubby is 32). Baby due Oct 31 2016! 🎃
I am about 15-20 lbs overweight and usually wear high waist skinny jeans, but lately, I've been only yoga pants because of the bloat! I feel like buttoning my jeans is squeezing my baby and when I sit down for too long, the top of my jeans dig into my stomach which is painful! Is anyone already looking for maternity clothes? I figure I'll grow into them if they're loose now... but not sure where to shop without spending a fortune... suggestions welcome!