38.6 weeks: reduced movement?

Melissa
I know she's running out of space, but this morning and yesterday she hasn't really been moving as much. I'm a FTM, so everything she does worries me 😅
I heard reduced movement could mean labor's near, but I'm so worried something could be wrong. Is something wrong or is she just outta space? I have a doctor's appointment tomorrow morning, but should I wait that long?