Heart rate and gender

Cindi

This ultrasound is 12 weeks 5 days . Heart rate was 158 I did blood test to find out gender and still waiting for the office to call today is day 16 ! I am 15 weeks today . I am 41 and this is my easiest pregnancy! No morning sickness the entire 15 weeks ( found out at 2 weeks) anyone else find out what they were having yet with heart rate close to this ?