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A 29-year-old female asked:

Hi ttc for 11 months have irregular periods started using opks said i ovulated on cd19 but my last cycle was 38 days they've been ranging from 35-38 ?

1 doctor answer1 doctor weighed in
Dr. Jeff Livingston
Obstetrics and Gynecology 23 years experience
14 days before: Ovulation occurs 14 days before you have your period. You can use your past history of determine the likely days of ovulation. If you have been trying for 11 months it may be time to schedule a complete fertility evaluation.
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Last updated Sep 13, 2016

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