Rhiannon I'm so sorry to read this. My daughter was born in October at 20 weeks, after an induced labour. We found out at the 20 week scan that she had died.
From the point of view of the induction mine was very straightforward and not at all frightening. I was given an oral tablet to ripen the cervix. Then we went home. After 36 hours we went back to hospital (they said come back in 24-36 hours). We were given a lovely midwife and a private room with 2 beds in so DH could stay the whole time - do ask for this. The MW did an internal examination to check how the cervix was (soft I imagine and maybe a bit shorter). Then she inserted 4 pessaries up next to the cervix. I'd never had a smear or an internal before so I can only describe it as weird and uncomfortable, but it was quick and not painful.
The pessaries went in at 11am. I think it was about an hour before I started getting a heavy periody pain feeling. After about another hour I started contracting, roughly every 1.5 mins from the off. The pain got stronger over the next half an hour and I asked for pain relief. I had an injection of morphine in my hip/bum. After about another 20 mins my waters (with blood) went. Contractions then completely stopped. 20 mins later I felt a weird sensation of something falling down inside me, and my baby just slipped out with the tiniest of pushes. She was only the size of a 14-15 weeker, though had lived to about 19 weeks, so yours will be bigger. You can ask the MW how big your baby is before labour if it helps you to prepare - they will have done measurements at your scans. From pessaries to delivery was only 3h20mins for me.
I had a managed third stage and the placenta came out intact with very little effort. One thing I do know is that it is relatively common in early deliveries like this to have difficulty getting the placenta out. Some MNers have described having to get upright and push quite hard. If it is retained they will do an EPRC which is a very quick operation, there are many folks on here who would be able to say what that is like if it helps you to know as much as possible.
Something else to be aware of is your milk may come in, mine did. If you would find this distressing then you can ask for tablets to suppress it. I left mine just come, it actually helped me emotionally I think.
I found I was very calm and practical for a few days and then completely fell apart. I think it was shock initially keeping me going.
Obviously it's entirely your choice but I would urge to reconsider seeing your baby. I posted before my delivery and asked whether people in this situation had seen their babies or not and whether that had been right/helpful for them. The majority of people said they had seen and held their babies and were glad of it. Some didn't get the chance, or said no initially because they were afraid/it was too soon and have found that very painful as the months go on. And some did chose not to see their babies and were comfortable with it, but they seemed to be the minority. If you don't want to see your baby at the time, maybe consider asking the hospital to do hand/foot prints and take some pictures. You don't have to look at these, but at least you would have them in case you ever did.
One last thing too (before I shut up, I promise!), I don't know if you work or not, but if you deliver after 24 weeks you can take maternity leave which maybe helpful in giving you some time and space to recover. If it's before 24 weeks you will be on sick leave until you return. Just something to bear in mind.
AS I said, I'm so so sorry to read about this, I hope some of what I've shared is useful. If you have questions please do ask them, or if in time you want to have a rant/vent/cry/grieve please do keep posting, there's lots of us who've been there sadly.
All the very best to you in this terrible time x