I figure if you (like many pg women) are going to give up coffee, artificial sweeteners, chemical cleaners, "dangerous" foods, alcohol, scuba diving, bungee jumping, smoking, hard drugs, drving recklessly, unsafe sex (ok now I am getting carried away LOL!) then giving up hair dye is a small thing.
:yeahthat:

For LTTTCers it's pretty usual to give up caffeine, soft cheeses, etc, so giving up on the dye isn't such a big deal.