TTC Basal Body Temp Chart & OPK question?

For those ladies who chart or know about charting basal body temps--could you take a quick peek at my chart and tell me what you think. I got a pos. OPK on CD 18 but fertilityfriend is putting my dotted coverline on CD 17--has this ever happened to anyone before? I usually get a pos opk for 2 days---the day before O and day of O--never the day AFTER O! My question is basically--by looking at my chart do you think I o'd on CD 17 or 18?

http://www.fertilityfriend.com/home/321c1

Answers:
I believe they put your cl there because it was the drop before the spike. I would say as long as you took care of business when you got the + you should be ok.

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Hi,
Sometimes temperatures may rise due to several factors. But If u had BD alternatively in these days, then u should not worry.
Also, I see that u r using metformin, Now..i have a question for u...my dr. has given me metformin because she thinks I have PCOS..and that is why i am having irregular periods. I have been using 500mg daily one since 5 days. Is this helping for u?

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