hello,well i just wanted to say that im a hairdresser and i inhale those fumes everyday and it can make you feel sick but i have no choice as it is my trade...well i would reccomend that if you are in the early stages of pregnancy(1-3 months)i wouldnt recommend it as i do say to all of my clients not to risk it as you may have a reaction to the chemicals...i am long over due to get my colour buy id prefer to wait the full three months before i do it incase it does harm my baby...as iv been doing hairdressing for 10 yrs im used to all the fumes and you rnt so just be careful...when how ever you are futher along say 6 months or more sometimes the actual colour may not even take due to all the hormonal changes...good luck and sorry if i wrote to much