There is a study somewhere on the net that shows that the heartrate varies ONLY with length of gestation and that it is predictive of miscarriages - if it falls a week behind the expected level at any stage. This is most accurate at 8-12 weeks or thereabouts. They plotted heartbeat in pink and blue (pink for girls, blue for boys) and there was total overlap showing that heartbeat has nothing to do with gender.
Sorry can't find the study right now. The wives tale is that less than 140 is a boy, more than 140 is a girl.
IF it was true, it would be boy. My girl was consistently around 152 bpm - this one started off at 176 bpm and stayed that way until twelve weeks which was a bit worrying, before dropping down to 152 and staying there. I find out what she (convinced it's a girl) is next week.
Any opinions, advice, statements or other information expressed or made available on BabyandBump.Momtastic.com by users or third parties, including but not limited to bloggers, are solely those of the respective user or other third party. They do not reflect the opinions of BabyandBump.Momtastic.com and they have not been reviewed by a physician, psychologist or parenting expert or any member of the BabyandBump.Momtastic.com staff for accuracy, balance or objectivity. Content and other information presented on BabyandBump.Momtastic.com are not a substitute for professional medical or mental health advice, counseling, diagnosis, or treatment. Never delay or disregard seeking professional medical or mental health advice from your physician or other qualified health provider because of something you have read on BabyandBump.Momtastic.com. BabyandBump.Momtastic.com does not endorse any opinion, advice, statement, product, service or treatment made available on the website. If you think you have a medical emergency, call your doctor or emergency services immediately.