I feel like i need to insist the doctors to do an ultrasound I'm having some mild cramping nothing…

I feel like i need to insist the doctors to do an ultrasound I'm having some mild cramping nothing painful no bleeding but still i want them to see me and I don't have an appointment with them till next thursday and I'm annoyed because they said they have to reschedule something after that when i told them i had a loss ughh I'm starting to stress out😩😁😟 should I call them or tell them in my appointment next week?