22 weeks, baby movement has decreased

I hate that I don't feel her move as much anymore. I barely even feel her at all. It's been like this for like 4 days. It's freaking me out. I'm hoping she's just sleeping a lot and that it's nothing to be worried about. I have an ultrasound on Wednesday so I'm just trying to remain calm and wait until then to make sure it's all okay 🙌🏼. Anyone else experiencing this?