Whether you’re a brand new mommy or a seasoned pro at child-rearing, it’s not at all uncommon to find yourself wanting to reclaim the firm, sexy figure you enjoyed before you became pregnant. But what if you’re thinking about having more kids? Can you schedule plastic surgery if there are more children on the way?

The short answer is yes—though for the best results, you probably shouldn’t. There are a number of reasons why the best time to get a mommy makeover is after your family is completed.

Muscle Separation

Part of the pregnancy process involves the connective tissue in your abdomen stretching to make room for your growing baby, which in turn can cause abdominal muscles to separate. This is a commonly fixed issue during a mommy makeover, but this separation becomes more common with additional pregnancies. Waiting until all of your kids are here is the best way to keep those abs tight and firm.

Skin Elasticity

A big part of the mommy makeover involves a tummy tuck to remove loose skin that was stretched out during pregnancy. Another pregnancy after you’ve already had a tuck could cause a repeat performance that compromises the results of your tummy tightening. Waiting until you’re sure you won’t be pregnant again can save you the time and trouble of multiple procedures.

Weight Gain

Weight gain comes along with any pregnancy, particularly for women who already struggle with maintaining a consistent target weight. The mommy makeover typically includes a tummy tuck and liposuction, two procedures whose results are best maintained by keeping a steady and healthy weight over time. While a little weight gain won’t hurt, you may find the added impact of another pregnancy could throw off trim new figure that you worked so hard to achieve.