Question about ultrasounds

Kaela
I basically just want to know if a transvaginal ultrasound is required. I know they do them for people who are seen very early on but I'll be 11 weeks at my first appointment and they do abdominal scans then. So will I still be getting a transvaginal for the first one? Or not? Or do you get them throughout the whole pregnancy? Sorry, I'm clueless!