What are the miscarriage statistics during the first trimester with a heartbeat?

Drops to 5% after "seeing the FHB" on ultrasound, and to less than 1% after hearing on doppler.

What are the miscarriage statistics during the first trimester with a heartbeat?
What I've heard:





2% after a heartbeat is heard, but age and whether the mother has had a miscarriage before should be taken into account.





I think it can be no more than 20% though.
Reply:I heard my baby's heartbeat at 8 weeks and lost my baby 2 weeks later. I've never had a miscarriage before. They don't know the cause of the miscarriage. It may have been stress. I hope things are ok for you. Good luck.