So sorry for your loss Gonnabe, and yours too Euro.
Gonnabe - I had this happen to me in September although at 8 weeks. I was scanned after I had a tiny amount of bleeding. I can't imagine how awful it feels to have no indication anything may be wrong and then to receive that news at the 12 week scan.
I had to wait 2 weeks for a second scan and I also found this the hardest time. I knew it was over and couldn't stand to wait. I just wanted it over physically so that I could start to move on. I felt that I couldn't even begin to move on emotionally until it was over physically. I found that these desperate feelings calmed down a bit after a few days and I began to accept that I would just have to wait for the 2 weeks for the second scan. After the 2nd scan, things moved quickly and I had the ERPC only 2 days later.
I had the ERPC because I didn't want to make my miscarriage any worse than it was already by having to go through bleeding and pain of natural or medically managed. Although I was a jibbering wreck before the ERPC, terrified that something would go wrong, I was fine after it, had no pain and barely any bleeding, and felt a sense of relief that it was over. I did go to see my GP a few days later because I felt a bit unwell and had a temperature and she put me on antibiotics out of an abundance of caution in case there was an infection. A swab test came back clear though so it was obviously just a bit of a bug because I was run down than anything connected with the ERPC.
I started my period 4 weeks to the day after the ERPC and fell pregnant the following month. I am now 16 weeks pregnant and everything is looking good so far, despite a couple of scares.
If I was in that situation again, I would have the ERPC again. I didn't want to put myself through a worse experience than I was already dealing with.
Sending the biggest hugs to you.