Coping with weight gain?

I need help on how to cope with this weight gain!
I have ALWAYS really struggled with body image and I'm now 32 weeks pregnant and finding myself extremely depressed.. I mean I know we gain weight and it's a blessing my baby is healthy but I'm noticing some serious back fat and cellulite on my thighs that was NOT there before! I've been gaining a healthy amount of weight and started at a healthy weight. My husband told me my arms were getting fat and now the last thing I want to do is leave the house because I'm so embarrassed at how I look.. Any advice???