Why can’t I schedule ultrasound

I’m still early in my pregnancy. there’s so much about missed miscarriage online, especially when anxious people like me all of a sudden lose pregnancy symptoms when I was actually just diagnosed with HG on Friday and then I start going online. I just wish I could schedule and ultrasound for peace of mind or to know things sooner because waiting and being anxious seems so unhealthy. I really wish I could called and schedule an ultrasound so her HR and measurements, I would even pay whatever and not use insurance. I don’t know why this isn’t an option… does anyone else know why? I’m just so anxious. I had to do IVF so I’m sure it’s adding to my anxiety.