I was told by my mom before looking up or asking my doctor, that coloring your hair is fine when you are pregnant, my mom said she did it with me and my sister. So I did, I was as in my first trimester. I'm kimda worried now because I heard its save AFTER the first tri. Im 15 1/2 weeks along now and have a ultrasound tomorrow morning, so I will also ask my doctor this too, but I was wondering if anybody thinks I should be concerned?