I had an early scan today at 9+3 and all is looking good with a strong heartbeat. Is it true that once you've seen a heartbeat the chance of miscarriage drops significantly? Just looking for some extra reassurance I suppose as it's looking like my 12 week scan is going to be delayed due to the virus. I know in other countries the 12 week scan isn't a thing and the first scan is always earlier so I'm confused why we place so much importance on it?