When to collect urine for ovulation test?

Any urine specimen is appropriate for ovulation testing, though the ideal time for ovulation test is in the afternoon.
It is recommended to do the test twice a day (one after 10am and one around 8pm). First morning urine is not recommended since LH surge may happen later that morning. When you test twice a day you have higher chances not to miss your LH surge.
Liquid intake should be reduced approximately 2 hours prior to testing (no more than 8 oz during these 2 hours).
Another important thing is that for some women a clear positive result may last for a couple of days, for others it can be less than 12 hours. That's why we always recommend testing twice a day so that there is a better chance to catch the surge.
Please note positive LH test indicates that the ovulation will take place between next 24 and 48 hours.

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