Progesterone levels (produced from the corpus luteum) peak 7 days prior to the onset of menses. If a menstrual cycles is regular and conforms to a standard 28 day length, progesterone concentrations will normally peak on approximately day 21 of the cycle (with day 1 being the first day of menstruation). Therefore, when assessing for ovulation, progesterone should be measured at day 21 of the cycle or 7 days prior to the expected onset of menses. If a woman has an irregular or prolonged cycle then progesterone can be measured on a weekly basis until the onset of menses.
Fertility – Marker of ovulation
£55.00
Day 21 Progesterone Test – this test measures the concentration of progesterone in the blood. Progesterone is a hormone whose main role is to help prepare and maintain a woman’s endometerium (lining of the womb/uterus) for pregnancy; it works together with several other female hormones.
Est. Result Turnaround Time : 4 hours
Related products
Pregnancy test (blood)
£61.00Menstruation problem
£249.00Future fertility
£241.00Menopause Profile
£151.00
