Its fine, I coloured mine at 10 and 20 weeks. Only thing I would say is that at 10 weeks it felt like it was burning 3tall over tint) 20 weeks was fine though. People say your hair might react differently because of your hormones but I've dyed mine red once and brown once and I haven't ended up with pink hair! Enjoy the wedding. Xxx
I had my roots bleached at 7 weeks pregnant then my hair dyed back to brown at 13 weeks, and my midwife said this was fine. She said if you cant dye your hair then you cant clean your bathroom either, as bleach fumes are only as strong as putting bleach down toilet. My sister in law dyed her hair through both her pregnancies and both her children are perfectly healthy.
Being pregnant is hard enough without having to live with dark roots too! I'm planning on carrying on with highlights throughout - I've looked into it and everything sensible I've read indicates it's fine.
I'm getting my highlights done this week, am 16 weeks. Hairdressers said it was absolutely fine and have been great at fitting appointment around my morning sickness. Enjoy your new do and ignore silly unhelpful comments that people post on here! X