Fundal height still measuring behind

Should I be concerned that my fundal height still measures a week behind at 37 weeks? It's been measuring behind at every single appointment starting at 20 weeks and my doctor isn't concerned but I am. During the beginning of my pregnancy people would comment on how small I was but I brushed it off but now I'm thinking it's because I'm not as far along as the doctors say.
At 6 weeks, my ultrasound showed no fetal pole or fetus. Which I though was pretty odd but normal. My doctor wants me to deliver early and feels that I may because of constant BH but I don't think I will. Of course, I know baby will come when she's ready BUT  I'm scared they're going to force me to have her if I go "over" my due date when in reality she may be younger than what they think. My doctor will not send me for another scan and I haven't had one since 20 weeks. At that appointment on 4/29 the tech kept telling me that I was 19 weeks according to my due date which is 9/16 but wrote in the notes that my baby was measuring 20wks 1day. Nothing added up to me.
*I do not want hear "baby will come when she's ready" as that's a no brainer.* I would like feedback from people whose experienced wacky measurements that may signal a problem. Thank you!!

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors