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When will I OVULATE based on CYCLE DATES?

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My husband and I are trying to conceive. I have a 35 day cycle. Long story short, I took 6 days of birth control starting on cycle day 3. On cycle day 11, I started a second period that lasted 3 days. So today I am on cycle day 22, and all of my opk tests have been negative since cycle day 17. I'm due to ovulate on March 1st , tomorrow. My question is, will I ovulate this month, or will it be later than expected?

Category: Infertility Specialist

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Category: Infertility Specialist
 25 Doctors Online

Thanks for posting your query at
Well, the second period that you had happened because you stopped the birth control after taking it for 6 days.
Your ovulation this month would be unpredictable, since this period was a withdrawal bled after the birth control stopped.
If you wish to plan a conception, it is much better to plan your ovulatory dates next month, after your next period, as that would be a natural period.
With a 35 day cycle, it is very difficult to predict the precise dates of ovulation, as ovulation can occur anytime from day 14 - day 22 of the cycle.
If you have been trying for longer than a year to conceive, it is best to undergo follicular monitoring via ultrasound scan, instead of using OPK kits, as they are quite unreliable in longer cycles.
Take care.
Please feel free to discuss further.

Dr. Aarti Vazirani
Category: Infertility Specialist
Residency: Obstetrics & Gynecolog, BJMC,Civil hospital, Ahmedabad, 2008
Post Graduate: MS (Obstetrics & Gynecology), B.J. Medical College, Ahmedabad, 2008
Medical School: MBBS, B.J. Medical College, Ahmedabad, 2004
Dr. Aarti Vazirani and 4 other Medical Specialists are ready to help you

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