Unfortunately, I would recommend against these treatments during pregnancy as the safety of lasers and chemical peels has not been proven during pregnancy. Additionally, hormones are very labile during pregnancy, which can lead to altered responses to these types of treatments potentially leading to increased hyperpigmentation. On a positive note, if you only started to develop acne during your pregnancy, there is a chance it will disappear on its own postpartum when your hormones level back out. If post-inflammatory hyperpigmentation (PIH) and/or scarring are a problem at that time, reach out as this same regimen would be great to tackle those issues.