Fat Heidi:
There are lots of nice clothes for chubbier / heavier women nowadays. I have no idea which stores exist in the U. S. but I bet you can order nice things online. I don't know about your size, but some years ago, when I was already fatter than "average", I went to H&M and found some pretty things among the "pregnancy" clothes. Just browse the internet and you will find good and not too expensive things! You can be fat and still wear pretty things. The tent dress stuff is bulls*t.
I concur. Just because you are fat doesn't mean you can't be cute.
Also, depending on your size, you can find some cute pieces in you local store. Walmart, HEB, Target, etc.