Patients are advised to give themselves time to work toward their goal weight and allow their skin time to tighten as much as possible after childbirth or weight loss for best results. This could take up to a year or more. A tummy tuck after one or more pregnancies is best performed once the patient is done having children. You should ensure that you are at a stable weight and not planning any future pregnancies before moving forward with body contouring procedures if you want to achieve optimal, long-lasting results.