Feeling insecure during pregnancy

I’m 21 weeks pregnant and here recently I’ve been getting SO insecure and jealous and it’s not like me at all. If I see other girls in the store and I’m with my man I immediately think he’s staring at them instead of me and I’ve never had these thoughts before. I just can’t wait to workout once our daughter comes because I feel like a failure for some reason??

Idk, anyone else feeling this way out of nowhere?? I know our bodies constantly change during pregnancy and I love that but I just don’t feel beautiful anymore or that my body is worth looking at for my man.