What do you think about cd 17?

Admin-pattyandthemoos · #1 October 19th, 2007, 01:08 PM

I have been kind of thinking this for a while but I really wanted it to be day 14. I changed my settings with FF earlier just to see what happened. I used the FAM to pick my o date and it changed my date to day 17 which makes more sense to me but doesn't explain why my opks were positive three days earlier. Don't you think that is a little late to o after a positive opk. I put my positive opk back into my chart with TCOYF (I took the second one off my chart earlier) and it moved my o date one day over. I am sort of hoping it is day 17 in a way because that would mean I am only 8 dpo and still have a good shot at things but we didn't bd quite as close to day 17 as I would have liked. So what do you think? Do you think day 17 could be my o date?

ShawnaCAN · #2 October 19th, 2007, 01:49 PM

Quote:

Don't you think that is a little late to o after a positive opk.[/b]

No, not at all. Just about right actually. Ovulation can occur as much as 2 days after a positive OPK. Then temps can take an extra day or two to rise in response to progesterone, so I think CD17 is the most reasonable conclusion. CD14 doesn't make sense because you had a positive OPK that day, ovulation usually doesn't follow until at least 12 hours later. Secondly, the temps on CD15,16,17 don't meet the criteria for a proper thermal shift - they aren't any higher than your 6 previous temps. The temps on CD18,19,20 do meet that criteria.

So based on both the OPK's and the temps, CD 17 makes the most sense. CD14 makes the least.