Yes you can; *very* little dye enters your body at all, and a normal amount would not reach the baby. Don't leave the dye on for longer than you're supposed to, and be in a well ventilated area. You could also use vegan dyes; they don't have all those harsh chemicals. Hope this helps!
Yes. I did around the same time and my son is fine. Just use ammonia free. And make sure you're in a well ventilated room possibly keep a window open
If you use ammonia free dye. I would suggest doing it in a well ventilated area also