Tests that can be performed at any time include prolactin (milk hormone) and thyroid levels. Perhaps the most important hormonal test that a woman should undergo is an FSH (Follicle Stimulating Hormone) test. When performed early in your menstrual cycle (Day 1, 2 or 3 of bleeding), this test can provide information about the quantity and quality of a woman's eggs. An abnormal or high FSH level can mean that it will be more difficult for the woman to conceive, while a low or normal value is more reassuring. It is important that this test be performed in conjunction with an estradiol measurement since both hormone levels are related to each other.
An additional test, and anti-mullerian hormone level (AMH), may be performed as an additional way to look at how the ovaries are functioning. This test can be performed at any time in your menstrual cycle. Very low AMH levels, especially in conjunction with high FSH values, indicate that your ovaries may not be functioning as well as expected.
In addition, a progesterone level can provide useful information to confirm that you are ovulating as well as to assess the preparation of the body for pregnancy. This test is usually performed in the second half of your menstrual cycle, approximately 1 week after ovulation normally occurs.