At 6w 5d my baby's heartrate was 113 bpm. At 10w 1d it was 167 bpm and at 13w 1d it was 163bpm.
It sounds to me like you have a healthy active little peanut in there!!
The more active your baby is at the time (or just before) they measure the heartrate the higher the bpm's are. The time to really worry is when the bpm's are less than 100.
Enjoy your pregnancy and relax!! Everything sounds perfect!
With my first child, his heartrate was 170 at 12 weeks and at the time of birth it was around 138.