Depressed

I don't feel pretty anymore normally u can't keep me out of the mirror or I'm taking selfies all the time but lately I feel gross I'm 33 weeks pregnant I only gained 6 lbs . I wanted to gain more. But I can't stand looking in the mirror at all. My husband just says I'm crazy and he doesn't know y I feel this way. I feel like I'm pushing him away now. And that puts me in a bad mood I get these bad thoughts in my head . I asked my dr if I can be put on medication ( normally I am they made me stop taking them when I got pregnant) they told me no ... I feel lost right now