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When did I ovulate?

Brittany • Fri, Aug 03

My last period started on July 25 and it last 5 days. Glow is predicted my ovulation to be on the 7th of Aug. yesterday I took an opk and it was positive. Once I logged it in glow moved my ovulation to today. I took another opk today and it was negative. Did I ovulate already?

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When did I ovulate?

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