I have been dealing with this one, too. Not being 120 pounds, or less, I had a poor body image before anyway. Being pregnant doesn't help that at all. Like I said in the fat blimp post, my hubby always makes sure to tell me how beautiful I am to him. That helps a little, but I still feel great jealousy when I catch him looking at other women passing by who I feel are much prettier.
I just wish he would only look at me. I very very seldom even look at other men and think, "wow! He is hot!, " or "wow! What a nice ass!", etc. . In a way I guess that makes me feel as if I am being disloyal to my husband.
I guess that he will continue to always look, though, because it is only human nature. It isn't that I doubt he loves me. I know he does. So, I just try to do my best to hide my insecurities in this area, but try as I might I still slip occasionally with a comment to him.