Originally Posted by gaigai
Well, I already told you my guess. It is documented that girl fetus' (and newborns) have higher heart rates than boys. More than 140=girl, and yours was in the 150's, so it is DEFINITELY a girl.
I learned this working NICU's and PICU's.
I hope you're right, I've always wanted a girl first... I mean, we'll be happy either way as long as the baby is healthy, but I've always wanted a girl first... strange eh?