I'm being too jealous

I need help! I have been feeling incredibly insecure about myself being 7 months pregnant and was told by my husband that he is flying me home for a baby shower which is super nice! The only thing that's upsetting me is that he would fly back as well for the weekend and we would also attend his cousin's wedding. At his cousin's wedding there will be a friend of my husband who is cute and tall and skinny and it makes me feel even worse about myself. I don't do well with jealousy and I need some advice. I don't want to be upset about this but o feel so disgusting and less like a woman compared to her 😔 I know I sound crazy but I can't help but feel this way. Advice?