Early labour?

Has anyone been scheduled for a scan at 32 weeks and been told that baby would have to be delivered early?

I have a scan tomorrow and I'm worried about it as I have protein in my urine and my gut is telling me that I'll be told I need to have my little one early? Has anyone had this? My reason for getting a scan is that my midwife measured me and baby has only grown 2cm since my last appointment a month ago. She said that it could just be babys position but I'm paranoid something is wrong.