Heart rate boy?

Sa

Ok so I did the sneak peek blood test (I know it can be inaccurate) and it said boy and alllll of my family thinks a boy and I hope it’s a boy BUT at my ultrasound today (11 weeks) the heart rate was 187 😳 both my girls had very high heart rates and I know it’s a midwives tale that boys heart rates are low. So I guess my question is who has had a boy with a super high heart rate???