Id say girl based on the old wives tale...it came out true for me!! Best wishes!!

My sons is about the same rate , heart rate can't determine sex , if it could your babies rate would be more of a boys then a girls the old tale was lower rate was a boy higher was a girl but my boy used to be in the 160's in the beginning and then went down to the 140's

id say girl my daughters HR is like that too

my princess has had her heart beat at 146 since 6 weeks 👸💓

That's an ole wife tale. They said bBies sex is not determined by HR.