<prompt> Increase in body temp during ovulation is by -EstrogenProgesteroneLHFSH  <response>: Ans. is b i.e., Progesterone o Ovulation mav be inferred bv measuring the basal body temperature throuehout the menstrual cycle.o Temperature recordings are done on a chart and sustained upward shift of temperature 0.3degrees F for three days infers that progesterone is being synthesized and released into circulation as a result of ovulation.Test Time ObservationTest for documenting ovulation1. Basal body tempThroughout cycleBiphasic pattern2. Cervical mucusDay 12 - 14 Day 21 -23Cervical mucus is clear watery, stretchabilitv present, derming present Cervical mucus is thick, viscid, tack present, feming absent3. Vaginal cytologyDay 12 - 14Estrogen dominated smears-efear, discrete comifined, polygonal, superficial cells predominant cellsDay 21-23Progesterone dominanted smear - containing dirty, predominantly intermediate Navicular cells4. Endometrial biopsyDay 24 - 26Secretory endometrium confirming ovulation5. Serum progesteroneD8 and D21D - 8 1 ngmi D - 21 6 5 ngml6. Foil icular monitoringD10- D14Follicle is measured by USG7. LaparoscopySecretory phaseRecent corpus luteum is directly seen 