I would have preferred to have not coloured my hair while being pregnant but before I got my BFP I had lighter foils so I got it redone a couple of times but have now just put a semi permanant over the top to go back to my natural brown. Having said that it's still lighter than my natural colour so I think I will have to dye it 1 or 2 more times before the baby is due. Looking back I wish I had not done the foils in the 1st place and then I wouldn't have had to do any dying at all. Honestly it probably doesn't make much difference so just do whatever you want