I agree! My situation started similar to yours. I never had an xray but, I had 3 different ultrasounds. The only time they were able to fully diagnois me was when I had a lap procedure. My ultrasound showed a 2 cm fibroid. My lap showed a whole lot more.
They won't be able to tell you if you have either of those with an x-ray. The only way to tell if you have endo is from an exploratory laparoscopy. (I've had 4 laps done for endo and cyst removal.) As for ovarian cancer, I think a PAP and blood work would tell that. I think your doc should have ordered an ultrasound if anything... but they know it all right?? :) i hope all goes well for you though, and wishing you luck. If you need anything, send a note or message, I'll be happy to help if I can :) GOOD LUCK!