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2. Fertility awareness - Wikipedia

   en.wikipedia.org/wiki/Fertility_awareness

   Ovulation predictor kits can detect imminent ovulation from the concentration of luteinizing hormone (LH) in a woman's urine. A positive ovulation predictor kit result is usually followed by ovulation within 12–36 hours. Saliva microscopes, when correctly used, can detect ferning structures in the saliva that precede ovulation.

3. Fertility testing - Wikipedia

   en.wikipedia.org/wiki/Fertility_testing

   This test can recognize the LH surge about 1-1.5 days prior to ovulation. Additionally, some ovulation prediction kits detect estrone-3-glucuronide. This is a breakdown product of estrogen and will have increased levels in the urine around the time of ovulation. This test is able to detect luteinizing hormone and estrone-3-glucuronide 90% of ...

4. Conception device - Wikipedia

   en.wikipedia.org/wiki/Conception_device

   The chart should show low temperatures before ovulation in the follicular phase, and higher ones after ovulation in the luteal phase. Using a basal thermometer in connection with a chart over several months should show the best times when conception can take place and enable the planning of intercourse or artificial insemination.

5. Pregnancy test - Wikipedia

   en.wikipedia.org/wiki/Pregnancy_test

   The assays used to detect the presence of hCG in blood or urine are generally reliable and inexpensive. Secretion of hCG can occur as soon as 6 days following ovulation and on average 8–10 days following ovulation; this is the earliest hCG can be detected in a blood sample. [7] [5] [8] The hCG concentration in blood is higher than in urine ...

6. Luteinizing hormone - Wikipedia

   en.wikipedia.org/wiki/Luteinizing_hormone

   LH can be detected by urinary ovulation predictor kits (OPK, also LH-kit) that are performed, typically daily, around the time ovulation may be expected. [32] A conversion from a negative to a positive reading would suggest that ovulation is about to occur within 24–48 hours, giving women two days to engage in sexual intercourse or artificial ...

7. Basal body temperature - Wikipedia

   en.wikipedia.org/wiki/Basal_body_temperature

   In women, ovulation causes a sustained increase of at least 0.2 °C (0.4 °F) in BBT. Monitoring BBTs is one way of estimating the day of ovulation. The tendency of a woman to have lower temperatures before ovulation, and higher temperatures afterwards, is known as a biphasic temperature pattern.