They would tread very cautiously - certainly at our hospital you'd be given lots of extra scans to check how the placenta was working and whether the baby was getting a good blood flow, if that wasn't the case then absolutely you'd be sectioned (or if your bp was putting you at strong risk of developing eclampsia) but they'll look after you sweets!
Must be a huge worry for you, it's hard when you know something is inevitable in a way but you've done really well to get to 34 weeks - your baby would just need to feed and grow if born now, you've done all the hard bit!
Take care xx