high risk Doppler

Nicole
So I'm a FTM and today was my 36 week ultrasound. She's been measuring small but today she was measuring two weeks behind which dropped her to the 16th percentile! My OB wants me to come back next week for a high risk Doppler. I've gained weight appropriately and there are no abnormalities, but she wants them to look at the placenta and blood flow. Should I pack my hospital bag in my car when I go next week? I figure at 37wks when I go back if there is something wrong they may want to induce me then. Anyone else who had an unexpected early birth/induction with advice?