Parents ask me this one all the time. I used to say wait four to six months, but we've seen babies change at up to nine months. The best predictor is parent's eye color — if both parents have dark brown eyes, the odds of you having a blue eyed baby is rare. Though I've seen babies born with dark eyes, they tend to go from lighter to darker. Also, don't worry if the whites look bluish at first — this is normal, and they'll get lighter. Basically, there's a million changes at birth — hair changes, skin changes, and so does pigment. The eye color your baby winds up with is related much more to the eye color of you and your partner than the color your baby is born with... or the eye color you wish they'd have!