Your not suppose to but i have died other peoples hair and nothing happened to me or the baby
My Obgyn said it was fine as long as your in a well ventilated area.
U can dye ur hair when pregnant they mainly say to just wait til 2nd trimester which u r now make sure if u dye it to be in a well ventilated room
I died my hair the smell did bother me badly so not doing it again till after baby ;) they chemicals are strong especially if you have high scense of smell now!
You can dye it, but don't bleach it. My ob said that it is safe and no studies have shown it to be harmful.