@Gingermom15 I didn't realize that was a protocol. My son was 5 lb 12 oz when he was born at 39w 4d, and my MW didn't say anything about this time around (same midwife). He was completely healthy and small babies run in my family, so maybe that's why? I haven't been told I'm getting any additional scans. I did have one around 37/38 weeks with DS because my fundal height wasn't changing. They confirmed that he was on the smaller side, but didn't see any issues.
@LiveNLove44 It is possible that they didn't get all the measurements they needed or just want to remeasure some things in a few weeks. (I panicked when I had to have a second a/s with the MFM for DD, but it was because they couldn't get all the pictures of her heart they needed.) I hope it is nothing.