Same as above, my GP gave me the day 21 progesterone test to check that I had ovulated... he also referred me to get the follicular study ultrasounds to check that my eggies were growing & getting ready to release.. like above once again... they were able to tell me that I would ovulate in the next 2-3 days.
And again, like above, my GP was a ob/gyn for 15yrs previous to to just being a GP.

You could maybe ask your GP about the ultrasounds? Good luck!
LOL..wow sounds like we have the same doc, just in different states! (im in vic)