I’m really worried - waiting for a scan

Hi girls I just need some reassurance. I am waiting to have a transvaginal ultrasound after experiencing some worrying symptoms.

A dull ache in my lower right side for the last few months

Periods have become irregular, and length of time I bleed differs from month to month to month

That’s it. The pain is a dull nagging fullness, not too bad to take pain killers but enough to worry the shit out of me.

I ain’t gonna tip toe around it I’m terrified I’ve got cancer. I know the symptoms could also be a cyst but I thought it would need to be a lot more painful?

Has anyone else had a similar situation but all turned out okay? Help ladies!!!