 [ Symptoms ] who gets walking pneumonia and how is it spread [ Disease ] i am sorry to hear you are going through this sometimes pregnancy can stretch the abdominal muscles out so much that they can not snap back  they are kind of like elastic that way    and i am sure you have seen how floppy an elastic waistband gets after it is been over stretched i would suggest you visit your doctor to find out if he or she thinks this is the problem in your case if so he or she may be able to tell you whether or not abdominal muscle exercises will help if all else fails you can have this corrected with a cosmetic surgery procedure called abdominoplasty or  tummy tuck  in this surgery the abdominal muscles are literally sewed back together to give your belly a tight look again however this surgery is not recommended for any woman who plans to have more children save it for the time when you are confident your family is complete probably not the news you wanted to hear but i wanted to be honest with you wishing you all the best