Is it safe to dye my hair with box color while pregnant. The box says it is ammonia free and there is no bleach in it. I keep getting different answers and I'm not sure what to believe.

Don't dye your hair with anything while pregnant !

It is okay to dye hair during pregnancy as long as it is done in a well ventilated area. Now, the dye may take quicker than usual, or it may take longer, but the dye is not harmful to mother or baby.

Since this was asked in December, I'm pretty sure the OP has already made her decision.