Ultrasound controversy

Bianca • Raegan Marie 👼😍
I had my last ultrasound at about 16weeks, I'm now 26w and my midwife told me yesterday I wouldn't be getting any more unless it was absolutely necessary. I want to see my baby!! I've never heard this before and wanted to know if anyone else was going through this. Can I just request one? Or would it only be by doctors orders? First time mom please help.