Post partum wardrobe

Dee
What are some staples for post partum?. I go back to work this week and obviously after 6 weeks I'm not pre baby. Idk what to buy (don't really have much to spend) can't fit into too many of my old clothes n I feel really self-conscious in a lot of my shirts. Idk I just hope someone has been here n has some tips to get thru this. I don't think I look horrible but I look preggo still :-(
It's still kinda cold up here n it's business casual at my job. Ignore my junky sink. It was cleaning day lol