It is so natural to worry, i am 6w and it has been constant.
Kept telling myself my lack of symptoms was fine and I could make it to 12w.
Then last night I had heavy bleeding. Couldn't get hold of the doctor as it was after 5, so I went to the hospital. They were useless, did a urine and blood test to confirm pregnancy (surely even if i was miscarrying it would still be positive) and then told me I couldn't have a scan until Tuesday (this was on a wednesday). She told me to come back if the bleeding got worse - but not really sure what else they were going to do. She also commented on how we shouldn't go away for the weekend like we had planned because of travelling while bleeding (not because of any danger, just because it would be "uncomfortable" for us) - seems a bit odd, surely its the same as a period?
Anyway, I frantically called private clinics this morning despite the fact the bleeding had stopped (after a night of no sleep), got an appt and was told it may be too early to see anything. Went in anyway and all she had to do was an abdominal scan, not even a vaginal one, and she saw the strongest little heart beat and measured me at 6w 3d. It cost £79 and it was the best money I have ever spent.
I am shocked that even with heavy bright red bleeding, the NHS won't scan unless you push for it, and even then I was expected to wait 6 days. All the gyn told me was that it was a threatened miscarriage and to wait it out, awful bedside manner, no reassurance whatsoever.
So if you have a genuine concern, do try and push to see what the NHS will do, but it may be worth considering your options privately.
On the bright side - I have had absolutely no symptoms and I have a strong heart beat at 6 weeks, so don't torture yourself with touching your breasts to check they are sore (been there) or anything else - its fine! I have known women who have mmc and still have lots of symptoms, and women with absolteuly no symptoms who now have beautiful babies!
And even if you do have bright red heavy bleeding - it doesnt always mean the end!!!
Wanted to share my positive outcome after lots of worry, and wanted to rant about the hospital/NHS in my area!