If you have a Mommy and Me near you. Also my mother in law purchased me some super comfy maturinty pants from Gordmans that were discounted! Motherhood Maturinty is a little pricey but for comfortable pants its worth it (I am super cheap so $30 for pants is my cut off, which is what theirs cost). Good luck! Stay comfortable. I am 33 weeks and its finally really starting to be super uncomfortable.
Burlington , ifound some pants todayfor $5 cant beat that.
Pink blush maternity they often have $15 shirts plus if you sign up for the newsletter you get an additional 30% off your first order and it is very nice stuff
Old Navy. If you have any baby and maternity consignment shops nearby that would be worth looking at as well.
Consignment and thrift shops.. Craigslist.. If you want new cheap, you'll just have to check around (don't forget clearance). Maybe Ross or kohls. Also, check out clothes that aren't marketed as maternity sometimes they will work as well. I was able to avoid getting maternity clothes last pregnancy. I was able to wear some of my loose fitting pants under my belly, occasionally using hair bands to loop through the buttonhole and attach to button. Also bought a pair of yoga pants(swore I would never, but they are my fav now). Go through your own clothes, if you had any shirts that you thought made you look chubby or pregnant, they may work now that you are. I had a few empire waist shirts that worked until my last days. Good luck.
I had bought some from Burlington really cheap and pretty nice