Hi OP, firstly so sorry for your loss. I had five miscarriages in week 11 or 12 before having my DC, all but one of them natural. I strongly believe that doctors push D&Cs on women far too readily. It’s an invasive procedure that can cause scarring (Asherman’s syndrome) and affect future fertility. Miscarriage is natural - as natural as pregnancy and childbirth - and although I know it’s not always possible, it can be so much better in your own home, in privacy and comfort.
You can get everything you need around you, cosy blankets, paracetamol, hot water bottle, chocolate or hot drink if that works for you. I’ve always felt better being on my own, cosy and safe. I know you’ve got your little one to look after but make sure you look after yourself as well.
After the bleeding starts it can take a little while (even a few hours) before it really gets going. Once it does the cramps become regular, like a period but a bit more intense. You can breathe to ease the discomfort the way you would with any cramp, and I found you can even push to help the tissue pass a little more easily. In two out of five of my miscarriages I passed the embryo in a sac. It sounds shocking but it was the most positive experience for me and gave me a sense of closure both times. I could tell the embryo had stopped growing earlier than 11-12 weeks and it all made sense somehow. You might even want to use a sieve when you go back and forwards to the loo to make sure you can check for your baby/embryo (however you think of it). This helped me, but everyone is different. Do whatever works for you.
There are a few US sites that advise on taking the supplement black cahosh root to encourage the bleeding. They sell it at Holland and Barrett. I took it for one of my miscarriages, to help clear the last of the blood clots after passing the embryo. Not sure if it helped directly but when I went back to the clinic for a follow up scan I had passed all the remaining tissue, so no need for medical intervention.
PM me if you need to ask anything - the same for anyone else reading this who is waiting to miscarry. This is your miscarriage, you’re in control and it doesn’t have to be an awful experience.