Same charts, diff app, diff O day?

Question

I've always used Glow, and I always get a positive opk on days 9-11. I decided to try Fertility Friend and just uploaded all my info for this cycle... they are predicting different O days and now I'm questioning everything and wondering if I've been having sex at the wrong times for the past 14 months. 😪 I so wish this was easier.

Answer

FF is giving you a dotted line, meaning the algorithm doesn’t feel certain you ovulated on that day but that’s it’s best guest. It it’s acknowledging CD 9 because you don’t have enough temps before that to confirm since it confirms by 3 higher temps than the previous 6. If you feel confident that your OPK was for sure positive then I’d go with CD 9 as your ovulation date

Answer

I only was able to chart one cycle because I got my bfp (tracking bbt definitely lowered my stress and anxiety), but fertility friend couldn't even pinpoint my ovulation. My glow date looks to be correct, but I won't know for sure until my ultrasound next week.

Same charts, diff app, diff O day?

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