Your doctor will likely begin by reviewing your menstrual cycle history. Regular, predictable cycles suggest normal hormone function, while irregular cycles may indicate hormonal imbalances. They will also ask about your symptoms, including any signs of ovulation (like changes in cervical mucus). To confirm a low progesterone level, blood tests are the primary method. These tests measure progesterone levels at specific times during your menstrual cycle, most commonly around days 21-23 of a 28-day cycle. This timing is because progesterone levels peak after ovulation. A low result suggests potential progesterone deficiency.
Further Investigations
If initial blood tests show low progesterone, further testing may be needed. This might include a saliva test, offering a less invasive alternative to blood draws. Ultrasound scans can help visualize the ovaries and assess follicle growth, contributing to a more complete picture of ovulation and progesterone production. Sometimes, a hysterosalpingogram (HSG) might be recommended to rule out any fallopian tube blockages that could affect fertilization and implantation. These tests, in combination, provide a more complete assessment to support the most suitable treatment plan.
