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

Yes, you can colour your hair even if you are pregnant. Just make sure that you use best quality product and if possible use herbal ones. I, myself coloured my hair during pregnancy. There are so many hormonal changes, and I remember I coloured my hair because I started feeling quite low when I didn't fit in any of clothes and in my days, there was no shopping for clothes for mums-to-be or I didn't know much about it. So, to lift my spirits I got my hair coloured. I did streaks and as you know they do not colour from roots so your skin is not involved anywhere. Only while washing the colour off that it dripped down touching my skin. So, I think you can go ahead.