im very insecure

is any other women out there insecure about there breast size....I'm a 34b and and I feel like I'm the most insecure women that there is I'm always thinking that my husband might be looking at other women when we go out ..even if his not staring I think he is and we always end up fighting because of it and the worst thing is thing Is that I'm a jelouse type ...I just really want a happy and healthy marriage & pregnancy