35 weeks, measuring ahead?!

I’m 35 weeks and went to a growth ultrasound today since my doctor said my belly was measuring smaller than average. The ultrasound technician was extremely confused because once she took the measurements she said my baby was around 5 lbs 7 oz and measuring AHEAD?! She told me my doctor will probably discuss my due date at my appointment next week because at this point I will probably have him sooner. Baby is also head down now, super low right at the cervix 😳 I’ve been having pain extremely low down so i knew he was lower than before.

i know sometimes the measurements can be off? Do you think that’s what has happened?

I’m just shocked and confused!