Another colposcopy?

First post!
Diagnosed on 20th feb after getting biopsy taken at start of the month.
Had pet, ct & mri scan this week but no results yet. Got a letter in today for a colposcopy, it’s not for another 3 weeks though. I had hoped treatment plans would be in place before then.
Sadly Had no communication at all from hospital or anybody and feeling very in the dark about everything.
I didn’t expect to need another colposcopy?
Can anybody share their experience from diagnosed to treatment plan?

From a scared and worried lady!