Does being with babe mean two-tone hair color, noticeable roots or having to go gray?

While pregnant, I worried about my vanity and any possible implications that chemical hair dyes would have on my growing child. After chatting with my OB/GYN and my hairdresser, I opted for highlights, as they don't saturate the scalp as much as a full coverage dye.

On the topic, WebMD says:

We don't know much about the safety of hair dyes during pregnancy. It's likely that when you apply hair dye, only a small amount is absorbed into your system. So very little chemicals, if any, would be able to get to your baby. In the few animal and human studies that have been done, no changes were seen in the developing baby. Talk with your doctor if you have questions or concerns.

How do you feel about dying your hair while expecting?