Heartbeat at 8 weeks

We saw and heard a heartbeat at 8 weeks and it was 164. Doctor said everything looked good, but it’s so hard to relax after a miscarriage around 6 weeks. What are the chances of losing a baby after seeing and hearing a heartbeat at 8 weeks?

The internet says about 2% but I feel like it happens more often than that 🙁

I just can’t get excited, because I’m full of so much fear. There are women announcing on social media with similar due dates and I’m jealous of their confidence and happiness.