Sleep Quality and the Menstrual Cycle

Ovulation days will be detected using a commercial urine test for luteinizing hormone (LH) (PREGMATE, Ovulation Midstream Test Predictor Kit; sensitivity level:25mlU/mL). Participants will be instructed to use ovulation tests, starting 5 days before the expected ovulation (day 10) and for the next 7-10 days or until the first the first positive results are detected notify the study co-ordinator and share a photo of the results. Then participants will be asked to continue using the ovulation test for 3 more days.