Mine was in the 160s and I'm having a girl :)
I'm having a boy and his heartbeat at 13 weeks was 160 and its gone down as I get farther along. Its now 144.
Ohh okay well, at twelve weeks his heart rate was 172 bmp. It dropped quite a bit. My babies was 161 bmp at 9 weeks and will get to hear it again at 13 weeks on Thursday.
Well im only 12 weeks and 2 days :/
My sister is pregnant with a boy and his heart rate was 149bmp at her 5 month checkup. :)