Question: what are the chances of miscarriage after hearing heartbeat at 10 weeks?
Answer: For women over 40, once a heartbeat has been detected at 7-10 weeks, the risk of a miscarriage falls to around 10%. After 20 weeks, the risk plummets to less than 1%. Chance of miscarriage by 12 weeks but after confirmation of a fetal heart rate by the mother's age.