Thank you for the question.
Generally speaking, patients are able to have normal pregnancies after tummy tuck surgery. Depending on the weight gain/loss, changes in skin elasticity, genetics etc. revisionary surgery may be necessary after the pregnancy. This is a situation where only time will tell.
The “ideal” patient for tummy tuck surgery is one who has completed pregnancies, is psycho socially/emotionally/financially stable, has an excellent social support system surrounding him/her, is capable of arranging enough recovery time and who has reached a long-term stable weight.
I hope this helps.