I don't know what's wrong with me today, I have convinced myself that come next Tuesday when I have my combined test ad scan I'll find a beanie with no heartbeat 
I have been in the loo checking for bleeding every so often after seeing what I thought looked like a tiny pink tinge on my underwear, nothing at all when I wipe though (apologies for the tmi) and I have also convinced myself since then that my back is crampy.
I googled (I know, I know) and just keep finding stories of ladies who have seen a healthy HB and baby at 8 weeks only to find the baby had died by the 12 week scan, I'm 10+ 6 today and still having nausea and sickness (this morning was the last time I was sick)
I hate how my head likes to take a bad thought and run with it! 