I'm so sorry.
I have had both natural MC's and ERPC's.
The ERPC's I have had they took me into a side room and gave me the anaesthetic in there (its just a little room with a bed) so you are unconscious before they wheel you into the operating theatre so it is not as frightening as I thought it would be.
I found ERPC only mildly uncomfortable afterwards, a bit of grumbling tummy pain and some light bleeding, but not much, and I liked the fact that I had a deadline and I knew on that day it was going to be over, if that makes sense.
On the other hand I think I found it slightly hard to get my head around afterwards, because I was asleep when it was all happening and so I didn't really confront the reality iyswim.
Natural MC I have found much more painful physically, more intense pain than a period, and also I found the blood etc very upsetting.
On the other hand I did feel mentally I was better able to come to terms with it as I was physically seeing it happen.
I think it is a case of working out which you think might be the least awful option for you at this point.
Sometimes you can get them to book you in for an ERPC as a reassurance if you decide to try and have a natural MC-e.g. OK we'll leave it 2 weeks, but we've booked you in for a ERPC on x date so if it hasn't happened by then you will have the surgery, which I found psychologically easier as I knew then it wouldn't go on forever.