Hi Lisa!! Congrats on your pregnancy first of all. How wonderful, and nervewracking it is to be a first time mom isn't it. I am a stylist/colourist...and as long as your doctor is saying it is okay then don't worry about it as far as affecting your health or your baby's. I have two kids and worked with colour all day long and they are perfectly fine. Many women choose to colur during pregnancy and theeir hair is fine. However, what I wll tell you is this...make sure that you get a test strand, some of us (including myself have issues with colour taking on our hair very strangely during pregnancy due to all of the hormonal changes, i.e. off or ugly colour, not at all,or sometimes only in parts, as well as having the formulation work fine for normal touch ups like the first three times and then it will work improperly due to hormonal surges. If you would like, I work currently for Perfect Hair and Day Spa in Naperville (by the Route 59 train Station), I'd love to have a complimentary consultation with you about various options for colouring during pregnancy. I could go on and on about things, so it is much better to talk it over in person. My name is A., and the number is ###-###-####. I currently work Tuesdays 10-5:30, Fridays noon-7, and Saterdays 10-4. All over colour starts at $40. In the mean time if you have any other questions feel free to contact me. Hope this helps.