I had been using topical retin A (tretinoin) and HQ(Hydroquinone) from aesthetic clinic for 1 month. However, I was not applying it every on my face. Let say, 3 out of 5. 2 days ago, I recognized that I am prenant for 4 weeks. The question is does topical tretinoin and HQ harm to my baby's body forming? I have searched many article and I can't see the same conclusion. Please help me on this issue.