9 weeks 1 day, normal heart rate?

Savannah

Here is a picture of my peanut, I have had 2 missed miscarriages before and now for the first time made it to 9 weeks. The doctor said the heartrate was normal she said "its in the 150s, thats normal!" and I left. Then I (stupidly) went online and seen that 150 is way low. Should I call my doctor again? she saod normal but everyone else is like 180s. 😔