Why is my upper stomach sticking out after a full Tummy Tuck? It's has been 18 months and I look 7 months pregnant.

Without a picture it's impossible to comment but this is an issue that should be Commented on completely by your surgeon. If you to satisfy it may be time to get a second opinion.

If you have roundness to your abdomen and after abdominal plasty then he could be due to one of several things. The first would be increased thickness of skin due to fat. Second could be failure or loosening of your muscle tightening. The third and final could be due to internal fat. The first two are treatable with revisionary procedures and the last one can be improved The healthy lifestyle and exercise

I'm sorry that you are unhappy with your results.  As the others have said, photos are needed to comment on your particular situation.  Until then, it would be a good idea to go see a board certified plastic surgeon for a 2nd opinion and go from there.  If you have pre-op photos you can bring to your consultation that may help.  Good luck. ac 

If the fullness was present prior to surgery, a reverse upper abdominoplasty could have addressed that issue. This procedure is not for everyone. It is ideal for women with somewhat full breasts so the incisions can be hidden in the natural crease of the breasts where the scars will not be visible when standing.  I typically perform this procedure in conjunction with a mini-lower abdominoplasty when I feel it is the best choice for my patient. But, it can be performed alone, if a patient has received a traditional abdominoplasty elsewhere and still has concerns about the upper abdomen. 

Assuming you had a FULL abdominoplasty (tummy tuck) there are a couple of things that could be happening.  1. Recurrence of upper abdominal wall laxity.  This where in a full TT the muscles are sutured together.  2.  You have extra fat that wasn't (or couldn't) be addressed with your surgery.  3.  You have a significant amount of intra-abdominal fat.  1 & 2 can be improved with surgery, if you have 3 you have to loose more weight by dieting and exercise.  Photos would be helpful to give a more specific answer.