Do not use products with tretinoin (or Retin-A) on the area.
There is one other thing, I would like to know if there is any truth to the statement that using Retin A actually does more damage than good in the long run.
Tretinoin (Retin-A) is available only with a physician's prescription.
Retin-A is a Category C drug according to the FDA, which means that its risk for a pregnant woman can't be determined.
Although less than 10 percent of Retin-A passes into the mother's blood stream and even less than that reaches the baby, you should discuss this issue with your health care provider to determine if the benefits outweigh the potential risk.