Sympto-Hormonal Method

The sympto-hormonal method is a method of cycle charting that adds home urine hormone tests to physical signs. It is a type of fertility awareness-based method (FABM). A woman tracks physical signs such as cervical mucus, and often her waking temperature. She also tests her urine for hormones. Together, these observations help identify the fertile window and time ovulation.¹ The urine tests usually measure two hormones. One is luteinizing hormone (LH). The other is estrone-3-glucuronide (E1G), a form of estrogen present in urine. Rising estrogen gives an early signal that the fertile window has opened. The LH surge signals that ovulation is near. A later rise in temperature helps confirm that ovulation occurred.

The Marquette Method is the most studied sympto-hormonal method. It uses the Clearblue Fertility Monitor. The monitor measures LH and E1G in urine on the test days it requests. It then displays a Low, High, or Peak fertility reading. Women record that reading beside their physical signs.² Mucus-only methods, such as Billings and the Creighton Model, work differently. So does the sympto-thermal method, which uses temperature and mucus. The hormone readings add a second, independent view of the fertile window. This added view helps most when mucus signs are unclear or atypical.

The method supports the assessment of cycle health as well as family planning. Clinicians who use FABMs may interpret these charts to look for signs of a hormonal disorder. This use matters most for women with irregular cycles. A chart with both mucus patterns and hormone readings reveals more than either one alone. Hormone readings can reveal a weak LH surge, a prolonged estrogen rise, or no peak at all. Physical signs alone may miss these patterns.³

Clinicians can interpret these charts together with basal body temperature records. Clinicians trained in several FABM systems can review them. For couples, one system can serve both family planning and the monitoring of cycle health.