Momsh, I really understand your worry, first baby talaga stressful! But honestly, para sa ultrasound results especially when you're 35 weeks, kailangan mo talaga mag-follow up with your OB directly para ma-explain ng maayos. Hindi ka dapat mag-worry alone about this; it's your right to fully understand what's going on sa baby mo.
Call your doctor's clinic bukas or email them if kailangan mo, most doctors ay willing mag-clarify, maybe they were just rushed that day. A few of my mum friends din nag-ask for written copies ng results so may reference sila, super helpful talaga. You've got this, mommy!