Hi there - I would approach things in two steps.
First, it is important to know for sure if you are ovulating. The best/only way to know for sure is to get progesterone levels, which are blood tests. A progesterone level greater than 3 almost always means ovulation. If your value was 'borderline', it may be that you have not ovulated. Also, sometimes the lab can make a mistake, so that one reassuring value, especially without a period to follow, may have just been a lab error. So first step would be to get a progesterone level weekly, until the level exceeds 3 or even 5. Once it does, I would recommend repeating in 5-7 days just to confirm.
If it is not > 3, I would suggest repeating weekly for at least 5 weeks in a row.
This will tell you whether or not you are ovulating, and if you are ovulating you should either get a period or get pregnant.
If the progesterone DEFINITELY proves ovulation, and you still do not get a period, then an evaluation of your uterine cavity is worthwhile with a hysterosalpingogram, saline ultrasound, or hysteroscopy.
What hormones did your doctor check? He/she should check FSH, LH, estradiol. progesterone, prolactin, TSH.
Did you have any history in the past of a D&C operation, especially after a pregnancy? What is your weight. Do you have any hot flushes? Do you have any breast discharge. Do you have any excessive hair growth?
Good luck!
did they check your pitutary.... you need an MRI and prolactin level checked.
I was thinking thyroid issues