ovulation period tracker
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Result time varies by product and format; most tests produce results in roughly 3 minutes up to about 20 minutes depending on the test type.
Most trackers detect luteinizing hormone (LH). Some devices also report an estrogen metabolite (E3G) and a progesterone metabolite (PdG). Note that separate pregnancy tests detect hCG.
Trackers may identify anywhere from the two most fertile days up to a six-day fertile window. Urine LH detection typically provides an advance indicator of ovulation about 24–48 hours before ovulation.
Some products sync or upload test data to a companion smartphone app for tracking and interpretation. App features can include photo upload/scan of tests and app-displayed results for camera-read stick tests.
Strip tests are read by comparing the test line to the control line: a test line that is as dark as or darker than the control line indicates a positive LH surge. Follow the dip timing and read-window instructions provided with the test.
Digital monitors can report numeric hormone scores and cycle trends, track multiple hormones (LH, E3G, PdG), provide an extended fertile-window view for irregular cycles, and sync with a companion app for analysis and record-keeping.