A method for evaluating a series of samples of a non-serum bodily fluid sample of a subject, each sample of the series collected daily during a period of at least three and not more than four consecutive days during the timeframe of 7-10 days past the ovulation date, to evaluate corpus luteum function by estimating the levels of progesterone, comprising:
- predicting the timeframe of 7-10 days past the ovulation date to optimally conduct testing for progesterone or a progesterone metabolite by a step selected from the group consisting of:
- a. testing urine with a lateral flow assay test configured to evaluate urine for the presence of luteinizing hormone to determine the ovulation date;
- b. measuring a rise in basal body temperature of at least 0.5 degrees Fahrenheit to determine the ovulation date;
- c. utilizing a menstrual cycle tracking application operating on a mobile device configured to determine the ovulation date;
- and
- d. sampling cervical mucus to determine the ovulation date,
- collecting a non-serum bodily fluid sample daily for at least three and not more than four consecutive days during the timeframe of 7-10 days past the ovulation date;
- for each fluid sample collected on each of the consecutive days, testing for the presence of progesterone or a metabolite of progesterone by a step selected from the group consisting of:
- a. evaluating urine with a specially configured lateral flow assay, the specially configured lateral flow assay comprising:
- a sample pad configured to receive each urine sample,
- a receiving zone within a conjugate pad, the conjugate pad saturated with a conjugate of an anti-PdG antibody conjugated to a visual label at a concentration of 1-10 μg/ml, and
- a membrane comprising a testing zone,
- the testing zone comprising a PdG conjugated to a carrier protein that binds PdG antigens at 8-32 molecules per carrier protein and configured to evaluate for the presence or absence of PdG at or above a PdG threshold, the PdG threshold selected from within the range inclusive of 3-20 μg/ml, and
- an adsorbent pad at an end of the specially configured lateral flow assay opposite from the sample pad;
- b. evaluating a saliva sample with the aid of a diagnostic test system, the diagnostic test system comprising:
- an assay device comprising at least one testing region configured to evaluate an applied saliva sample for the presence of progesterone or a progesterone analyte,
- a port for receiving an assay device,
- a reader comprising one or more light sources for illuminating the testing region,
- a data analyzer configured to receive optical signals and determine an amount of an analyte present in the saliva sample, and transmit a result as an output;
- and
- evaluating saliva with a lateral flow test device for quantitatively detecting an analyte in a saliva sample configured to quantitatively detect progesterone at or above a threshold value selected from the range of 90-300 pg/ml;
- observing the result for the presence of progesterone or a metabolite of progesterone;
- following the first result indicating the presence of progesterone or a metabolite of progesterone above the PdG threshold in the tested non-serum bodily fluid sample or the first fold change, repeating the collecting step and the testing step for three days or until the first result indicating progesterone or a metabolite of progesterone is below the PdG threshold;
- and
- recording the total number of days the presence of progesterone is indicated or a metabolite of progesterone is indicated above the PdG threshold during the timeframe of 7-10 days past the ovulation date, or the total number of days the presence of progesterone is indicated or a metabolite of progesterone is indicated above the PdG threshold prior to the first result indicating progesterone is absent or a metabolite of progesterone is below the PdG threshold.