Anyone elses stomach not measuring as big anymore? Or been told their babies heart beat was beating fast?

My stomach was always measuring big and so was my baby. Then at 36 weeks it went to right on track and now at 37 weeks it's a couple days behind.

I have a growth scan tomorrow anyways because of how big he was last one though. It just worried me.

His heart beat I guess was going fast she kept monitoring it in the office and it went down to 130-140. She seemed concerned tho and asked about when the ultrasound was so she could get the results right away.

Blah I get so paranoid.