S.C.
I don't think there is a specific coloring for pregnant women. I actually colored mine at home and was totally fine. Just make sure the room is very well ventilated. The fumes made me really nauseous. I did try to color my hair in my first trimester, but couldn't get the color to stick. I guess that's pretty normal. I would suggest waiting till your first trimester to do any coloring. It's a bummer to spend all that money and have it not work.