many times when we arent feeling the greatest about ourselves all the other women seem to be prettier than us. if you know remember feeling pretty before it probably hasnt changed just your perception. if you have just had a baby your body will go through an adjustment period and your boyfriend will think you are beautiful even if you dont. everyone is correct when they say looks arent everything even if it is a "pretty" girl they may not have a winning personality and personality will make someone even more beautiful than just looks alone. keep working on building up your self-esteem as that is probably more the issue than anything else. and remember your boyfriend is with YOU he loves YOU.