Feeling insecure

I need your help ladies! Lately I've been feeling insecure about my body and myself in general. This definitely isn't my first time dealing with this but being pregnant and gaining weight without much control over it are tough. Trying to find clothes that still fit and being winded after shaving just add on! It has started affecting my sex life with my poor husband and he thought it had something to do with him. I explained everything to him and he's been very understanding and has tried doing everything he can to make me feel beautiful. But every time I change in front of him or take a shower, I freeze and panic almost. The anxiety just rushes to me. And today, my husband jokingly said I sucked and I immediately shut down. Any tips?! I want my man and our sex life back!