Anti-Müllerian Hormone (AMH)

AMH comes from the follicles that hold your eggs, making it a useful reflection of egg reserve. It cannot tell you whether you will conceive, and higher levels alongside raised testosterone and LH can fit a pattern linked with PCOS.

Total testosterone

In women, testosterone is mainly about androgen balance. Higher levels can be linked with irregular ovulation and PCOS, so it is read together with LH, FSH and AMH to see whether androgens may be affecting your cycle.

Thyroid Stimulating Hormone (TSH)

Because the thyroid influences ovulation, cycle length and early pregnancy, TSH is a standard part of any fertility workup. An out-of-range result can explain cycle changes that the reproductive hormones alone would not.

Estradiol

Your main estrogen, estradiol, rises as follicles develop and helps time the LH surge that triggers ovulation. Its level also provides the backdrop for reading FSH accurately, since estrogen feeds back to the brain.

Prolactin

High prolactin can interrupt the hormonal signals that lead to ovulation, sometimes causing missed periods or unexpected nipple discharge. Checking it alongside LH and FSH helps show whether it might be dampening your reproductive hormones.

Luteinizing Hormone (LH)

LH sparks ovulation each cycle. A level that runs high compared with FSH, especially alongside raised testosterone, is a pattern linked with PCOS and irregular ovulation.

Follicle-Stimulating Hormone (FSH)

FSH drives follicle growth in the first half of your cycle. It adds context to your AMH result on egg reserve, and comparing it with LH is part of reading a PCOS-linked hormone pattern.