So sorry thebishster and to everyone else for your lossess
I'm going through exactly the same thing, had slight spotting end of 10 weeks, nothing but mild cramps for the next week until last thursday night had some light red when I wipe (sorry if TMI). Called midwife next morning who very quickly arranged a scan at the EPU which confirmed my baby had no heartbeat and died at 7 weeks, there are no words to describe the devastation and loss I felt, couldn't stop crying and def couldn't take in any info on what next. I decided to go home and have a think about it (once I regained some emotional stability) and very soon started to bleed more heavily, which progressed over the weekend followed by more painful but manageable cramps. As things appeared to be moving quite quickly I decided to try it naturally, although I was terrified of the pain and what I might see. Finally yesterday over a period of around 6 hours, excuriating pain at times, lots of large clots (could feel it coming out), a trip to the GP for some codeine (worked a treat), constant hot water bottles, and when I could bear it no longer an extremely hot bath (which stopped the pain) it appears to be finally over. Today it just feels like a regular heavy period, mild cramps and just praying that I have passed everything. I have a scan booked in for thurs to check.
Personally for me I'm glad I have (hopefully) managed to it naturally, I found it very cathartic and it has helped me to begin to process this devastating loss. The pain is at times unbearable but only lasted a couple of hours in total. However, I think because everything seemed to start very quickly for me I guess in someway my decision was taken from me. I think Imnotaslimjim is right about the 12 week and placenta theory.
at the end of the day you need to do what you feel is right for you , everyone copes differently, and to be honest from what I read most people on the other threads seemed to recommend the surgical option, I was completely terrified, nearly had a panic attack with the anticipation of how awful it would be, and seriously considered the surgical option to just get it over with, but in the end it wasn't as bad as I anticipated. Although I know there is nothing I did wrong to cause my miscarriage, I was angry at my body for letting me down, so by miscarrying naturally and that I managed to cope with the pain (albeit with some strong painkillers) has helped me to forgive my body (I know it sounds silly)
I wish you the all the best with whatever you decide, go easy on yourself, its a horrible decision to have to make, as if losing our babies is not enough