17 Weeks Drs Appointment

I went to the doctor this morning for the 17 week check up.  Everything looked great.  They checked the baby's heartbeat and it was in the high 160's.  Dr. Robison immediately said "Wow, you have an active baby."  He assured me everything looked really good and the baby is healthy.  Now Lance and I are anxious about January 24th when we find out the gender.  According to the old wives tale when the baby's heartbeat is 140+ the baby is a girl and below 140 is a boy...so we shall see!