What day do you think ovulation occurred

Question

This is my sisters chart although she has been ttc for almost two years and is has going through all the testing(everything looks good) she has never charted herself just kept records for her obgyn. I’m trying to help her out but I’ve only been doing this a couple months myself. First ovulation was detected the cd 17 then the 15th and now it’s dotted on the 15th. Let me know your options thanks so much.

Answer

Based on fertile CM in CD 17, that’s when she ovulated. Shifted to less fertile the next day. Good for her for charting CM-most women here don’t and miss important info like that.

Answer

I would think CD17 IMO but I have been only doing this a couple months as well, still learning.

Answer

No fertile CM after CD 17 and OPK back to low. Based on BBT I want to say CD 17, but 15 can’t be ruled out either

Answer

CD21

What day do you think ovulation occurred

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