I'm so sorry you're going through this. I had one just over three weeks ago. I was just over 9 wks pg, baby had died at around 8. Like you it was a huge shock - I'd had no bleeding and still had pregnancy symptoms.
The operation was very quick and pretty straightforward. I was only about half an hour from going under to coming round in the recovery room. I think the op is about 10 mins. When I came round, I would hardly have known I had an op, apart from a bit of bleeding on a sanitary towel. It felt a bit painful when I came round but they gave me some intraveinous paracetomol and it was fine. I went home less han 2 hours later. I walked out of the hospital looking perfectly normal, but in a huge state of shock emotionally.
I took paracetamol later that night and by the next morning I didn't need any painkillers. Less than 48 hours afterwards I managed to take a piano duet exam with my daughter at a town 20 miles away (I didn't drive, though, as you have to leave at least 48 hours after the anaesthetic) and managed to do a bit of shopping afterwards (though I look back now and realise I was still in terrible shock).
I bled for about 8 days but not as heavy as a normal period. After about 5 days I had bad crampy pains which the doc thought might be my uterus contracting (others on here have experienced similar) but I was given antibiotics to be on the safe side. That was it, really. The only bad thing after that was that it took - and is taking - my body an awful long time to cotton on to the fact I'm not pregnant. I still had quite strong symptoms for about 2 weeks and I still feel a bit pregnant now and then even now.
Basically, I'd say the physical stuff was fine - I've had much worse. Emotionally, it's very tough. Expect to be in shock for a while - it's a bereavement and you have to allow for this. Be gentle on yourself and don't expect too much of yourself too soon.
I'm wishing you all the best for tomorrow. xxx