As i studied hairdressing there's no evidence showing it's good or bad throughout your pregnancy.. But as your hormones are all over the place when you colour your hair it can react different to how you would like .. Could go a different colour/patchy/fade quicker I personally wouldn't colour my hair throughout my pregnancy which I could but I've seen many people who have normally just highlights so it's not touching your skin and they've been fine if you are colouring your have try getting highlights not a colour that touches your scalp. It's up to you though:)
Thank you . Im getting it done and just wanted to put my doubts to rest !
I dyed my hair threw my pregnancy I think its more cause you can have a bad reaction to it because of hormones and stuff so maybe test on your skin first?? Plus hair dye doesnt actually go into your blood stream so I dont see how it effects baby just make sure that the room is well ventalated :)
Just stay in a well ventilated area