What annoys me about the 16 week not listening to HB thing is that you can't feel kicks with any certainty, so why not reassure with a listen? My MW used the Doppler at 16 weeks and about 10 times since! Any time I feel anxious, they invite me in for a listen.
Longest I'd definitely ask to have a listen. With your history I really can't see what possible reason they can give you for not!
Monten, lovely you remember!
Scarlet I've been described as "super-fertile" by my consultant and Prof Brosens. I conceive very easily, as soon as I start TTC, but I understand that whilst receptive, I am not selective, so I miscarry later when my body recognises them as duffers. I actually believe that my thin lining has also caused some of them to fail rather than having five duffers in a row, so I think they're linked. But I'm not medically qualified, just been overthinking for a couple of years.
It's no coincidence that a lot of us are more vintage than the usual reproducing population, so there might be definitely a link between age and this type of MC. Age seems to be the elephant in the room.
I don't know of any tests, as has been said, but my diagnosis is based on my experience. My thin lining was detected through scans whilst pg and a scan mid-cycle.
Hope this is of some use.