Can I color my hair during pregnancy? Is it harmful if its ammonia free color as well?

a lot of my friends did colour their hair when they were pregnant, but i was never really very convinced myself, so i waited till i had my baby and finished breastfeeding and then went ahead and coloured my hair. it is true that there is yet no evidence that the hair colour will seep in through your scalp and enter the blood and reach your baby. however, the various products used and the chemicals that you breathe in can still have some percentage of negative effect. i would say that if possible, do wait it out and once you are done breastfeeding, you can get back to all the styles you want, without an yworry at all :)