This blood test checks basic hormones which play an important role in controlling and supporting reproduction. The Infertility Check (female) is a test for important hormones which can help build a picture of why a woman might not be conceiving. Tests include FSH, LH, prolactin and oestradiol. There are many reasons why a woman might not be conceiving, from a blockage in the fallopian tubes to lack of ovulation. This test aims to identify sub-fertility caused by an imbalance of hormones or early menopause.