When to start testing
Your cycle starts on the first day you have your period. If you have a 28-day cycle, start using the test on day 11 and use it for six days, or however many days the manufacturer recommends. If your cycle runs between 27 and 34 days, your ovulation may range between days 13 and 20. Start testing on day 11 and continue until day 20 or so.
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