Yvette, I believe that it's safe these days to dye your hair because a chemical that was once considered harmful is no longer present in hair dyes - either salon or home-bought. I can't remember what chemical, perhaps ammonia? I'm not 100% sure. I always just dyed my hair after the first trimester & I'm going to have it done again on Tuesday as my bub is due quite soon.

I have been told that with the blondes, the peroxide used can be quite damaging to the hair shaft & as being pregnant can take the vitality out of hair (or sometimes replace it), it's best not to go the whole hog with blonde. But mind you, I have a LOT of blonde foils & my hair is holding it fine!