Sorry I haven't checked in for so long! The last few weeks of work before Christmas is always mental for me.
KVP, I'm so sorry you have to go through this. I had a D&C for both my miscarriages - one at six weeks and one at ten - and I too struggled with making the decision. For me, I just wanted it out of me, and I had a fear of the pain and mess of a natural m/c. There was a small upside of having a D&C, in that I could get the test results and learn that the second m/c was due to Trisomy 22, so there was nothing I did wrong and nothing I could have done to save it. That did bring me some relief.
On the downside there is a slight risk of Asherman's Syndrome from a D&C, which can make further implantations more difficult. Ask your FS about it; I asked mine and he set my mind at more ease re likelihood of it.
Nevertheless, it's an awful time and I send you hugs from afar.
AFM, BFN today from my Clomid round so I'll definitely be onto IVF/ICSI next cycle.