It's completely fine, I'm getting mine done tonight. My OB told me the same as melaniee123's. No ammonia and ventilation and you're good.
I think your baby is okay I dyed my hair and my doctor said it was okay as long as it's ammonia free and well ventilated rooom
Your fine lol seems like boyfriend is looking out for the baby that beautiful but you will be okay
It's fine to colour your hair.