Heart rate at 90bpm at 6 weeks

Chelsea

I went in for a ultrasound today and the baby is measuring perfect and we caught the heart beat at 90bpm the tech said that is completely normal at 6 weeks and it more than likely just started beating. I am reading so many articles and people saying that at 6 weeks it’s so low and that I will more than likely miscarry. I need to learn to stay off the internet and go with the flow. Any info please share!!!