One of LO's teeth came in with a yellow spot, and now it looks like another might have the same problem. I'm sort of freaking out. She's 11 mo, and we brush her teeth as best we can. It seems like they come directly out of the gum with the yellow. I didn't take any meds during pregnancy, and she hasn't had any kind of illness that would cause this. I'm calling a dentist this week, but I'm wondering if anyone else has experienced this?