Hi. Sorry it's not going to plan for you.
I had preeclampsia with my first.
I think it was noticed at about 34 weeks. I had no idea. My grandad died the day before I had a routine appointment with my midwife. She noticed my 'puffy face'. I explained that I had been upset all night and not slept and thought it was that that explained my puffy face and my slightly raised blood pressure.
She insisted on a urine test and I had protein in there. From then on I was in and out of hospital/doing 24 hour collections after that until 37 weeks. I was admitted again for monitoring (as I had been a number of times). DH went home to get some tea and come back. But then a midwife came to check my reflexes and I almost kicked her in the face as they were very much exaggerated, she checked my bp and told me I had to go down to delivery and to call DH.
I was then checked for signs I could be induced but the consultant said that wasn't happening. So I had an emergency cesarean. I remember that I felt strangely calm because all the medical staff were just brilliant.
The emergency cesarean was totally fine and apart from happening suddenly didn't feel much different to a later planned one I had.
My baby went to SCBU for a little while as her lungs needed a bit of help and while I recovered. It wasn't even for a day though.
My blood pressure was very up and down for the next few hours and I was in hospital slightly longer than I would have been. But I didn't feel awful (apart from the odd bp dip but they soon settled).
Since we were both discharged there were no other issues for either of us.
I think it's great they are aware of it with you and positive that you are further along. They will be on top of it and you are almost at 37 weeks already (which I think is seen as full term). My baby was 5lb 12 so little but not tiny. And she's certainly not little now (taller than me!).
Wishing you all the best.
My dd still jokes that she caused me issues from even before she was born.