@premomapp: You don't need to calculate your peak day. Your fertility chart already found it for you. Premom flags your fertile window automatically, so all you have to do is log your LH test (OPK) result: negative, faint, positive, or peak. The chart updates right away and your LH surge shows up as it happens. #ovulationtest #LHsurge #fertilewindow #OPK #premomapp ovulation test, LH test, LH surge, fertile window, OPK, Premom app, ovulation tracker

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Wednesday 09 September 2026 21:30:00 GMT