Run a fertility panel- but be sure to include an Anti-Mullerian Hormone test (AMH)
AMH a protein made in the ovarian follicles, is a specific indicator run to check ovarian reserve.
Other tests include running FSH, LH, estrogen, progesterone.
In the FIRST HALF of your menses cycle (day 1-15) our pituitary gland (in the brain) signals FSH to stimulate the production of estrogen (stimulates growth of an egg).
If your FSH is high- over signalling the body to make more estrogen, because less estrogen is being made- you may have Low Ovarian reserve
Estrogen would be low as well.
Both these tests, including LH should be run on Day 3 of your period.
In the SECOND HALF of your menses cycle (day 15- day 30) , after and IF ovulation occurs- Progesterone levels increase. If ovulation (release of an egg) does not occur- the levels remain low.
This test should be run approx. 7 days after ovulation (if you ovulate day 15, day 21-23).
AMH is also run to diagnose PCOS, predicting menopause or Premature ovarian failure, those going for IVF.