Ummm actually pap smears have nothing to do with ovarian cancer.
You only need to have pap smears after a hysterectomy
if you kept your cervix. Paps check for
cervical cancer and without a cervix there is no risk of cervical cancer.
Ovarian cancer will only occur in the ovaries. You might get a cancer in the surrounding tissues but it will not be ovarian cancer.
Please ladies only post from your experience - no-one can say without a full investigation that your doctor did screw up but can say it sounds like he did.
No matter how experienced someone here says they are you should always follow up any advice with your own doctor