There are many opinions regarding the topic if non-invasive treatments are safe during pregnancy. To be safe many doctors will recommend waiting until after pregnancy to eliminate any potential risks. Microdermabrasion is a non-invasive exfoliation method that removes and vacuum dead skin cells from the skin revealing fresh, healthy skin and does not pose any threat to an unborn baby. However, chemical peels are more controversial because some believe it is possible for the peeling agents to systemically absorb in the body and that even a low amount could be harmful to the fetus. Also, melanocytes in the skin are often effected by pregnancy and many women develop melasma, often known as the mask of pregnancy. Therefore, chemical peels during pregnancy would pose an increased risk of post inflammatory hyperpigmentation. I would advise to wait until the pregnancy is over before using chemical peels.