Hair! So many opinions on dye or not dye!

Carolina • 1 fresh successful cycle 2015 ! 15 month daughter via IVF and going thru FET Aug 2017 🙏🏼🙏🏼 1 embryo ready for transfer!
So how many of you are still count to color hair during pregnancy? I normally color my hair every couple of months to cover some grays by the front. I did it right before transfer and now I will be due again like in Dec. is it safe?