First, how wonderful that you want to be parents again at your young age!! I think that is great!
I was completely gray by 45 with whiter streaks blending in by 50. I colored once and it turned orange and I said never again!! I was sitting in the salon one day waiting to have my hair trimmed when a lady sitting next to me said "are you in to have a dye job"? When I said no, she said "never do anything to your hair, it is so beautiful!". She was probably in her 30s so that made me feel very very good about leaving it in it's natural state!! My sisters think I'm crazy but God made me this way and I love it.