Can fetal heartbeat be too high?

Cathy

I had an ultrasound today and heard the heartbeat for the first time. It was 138 BPM. I am 6 weeks 4 days. Is this too high? Based on what I read, this is much higher than average for this far along. Are there issues associated with this high of a heart rate at this stage? Just for reference, my heart rate tends to be higher than average, about 90 resting. Blood pressure tends to be on the low end, around 95/70.