I'm the same as Ambah, I've recently done mine red (semi though) and the first time the colour didn't turn out right and didn't hold, it washed out in a few weeks. This time I went a darker red and it's looking a bit better.

In my opinion, if dyeing your hair during pregnancy caused any harm to unborn babies, we'd well and truly know about it by now - how long have women been doing it? And what about hairdressers who are in contact with these products all day, every day?

I must admit I wouldn't do it too frequently and I probably would steer clear of the harsher permanent colours, especially bleach, but I really do think it's safe.

I think it'd be fine, I say go for it!!