Morpheus8 before or after pregnancy?

I recently saw a provider to address melasma, tightening, and excess fat under chin, and she suggested Morpheus8. I scheduled an appointment, but my husband and I have decided to try for another baby. I had melasma pre pregnancy, but it did worsen during pregnancy and has not resolved after. I called to ask my provider if I should wait, and she said to go ahead w Morpheus. My concern is I'll be spending a lot of money and my issues will come back. Any advice is appreciated. I'm a 37 y/o female.