Baby still measuring small...

Michaela • 31 years old. Mom of 3

Had my appointment today and midwife told me my baby looks to be measuring too small so I'll have to have another ultrasound in two weeks. I'm currently 32+3. Baby has strong heartbeat and she is constantly active. She said it may be my pelvis because I'm really petite. But my son was 7.5 at birth and I was huge for my size. I'm starting worry..

Are any of you ladies as far as me with a baby measuring small, or has this happened with any of your pregnancies in the past and everything be OK??