FF moved my O date

lgsdesigner

I know for sure I O’d on CD 14 this cycle because I had bad O pains that day. I also had EWCM on CD 13 and CD 14, then after that, just watery.

For some weird reason—Fertillity Friend moved my O date to CD 16 saying “Your ovulation date has moved due to temperature shifts”.

Has this happened to anyone else? And—do you think FF is correct, or do you think I should stick with my gut feeling that I am correct according to O pain?

Here is a copy of my chart for reference.

marijaa333

Yes, it happened to me just the other day. FF was concluding that O was on CD 17, and I was convinced it happened on CD 15 (I even posted here about it). Anyway, I gave it a few more days' worth of data, and then it switched to CD 14... 

If you want to know what it thinks solely based on temperatures, see what happens if you delete your CM data (but note it down so you can put it back in later!).

lgsdesigner

@marijaa333 - Ahh...I see. Okay. I will try that and see if it changes anything. It was trying to tell me it was based on the temperatures, but I have never had O pains on days I didn't O, so for it to move to CD 17? Didn't seem right. Thanks!

marijaa333

@lgsdesigner that was my experience too - I had very convincing O pains on O day so I was adamant that FF was wrong. Will triangulate data with an OPK this coming cycle, though.

The thing it really seems to dislike are "erratic" temperatures; so if you were measuring on different times of day or perhaps caught a cold for even one day, it could throw it off. 

Let us know what it says without CM data!

marijaa333

Here is mine in case it helps. I'm pretty sure O was on CD 15, but it thought it was 17 and now moved it to CD 14. I think the reason in my case is that I don't always take my temp right when I get up.

I hope you can see my chart below, and not yours! I don't know how to reliably insert just my own chart image...

lgsdesigner

@marijaa333- I agree. Looks like an O on CD15! Damn FF messing with us, ladies...

gscoville

Temps are much more important in FF's calculations than CM, so I can see why it changed your O date - your temps didn't really go up higher than coverline or pre-O temps until the later O date FF now has you at. In all of my time temping/charting with FF I actually found that my temps were more reliable than any other sign. I would get three days of +OPKs some cycles so couldn't tell exact O day by them very often.  I'd also have erratic EWCM (as in days of lots of EWCM and then none, then temps would say I ovulated a couple of days after having EWCM), and my O pains that I always thought were exactly on O day were actually sometimes days before O, sometimes the day of, sometimes days after. I guess what I'm getting at is body signs that we look at or notice aren't always the most reliable, but temps are usually irrefutable. It's what I found to be true through over a year and a half of temping/charting.  Trust your temps.

marijaa333

@gscoville good to know! how did you determine when your O pain wasn't reliable? That one seemed pretty convincing to me - it never happens other than on (around?) O day and is a very distinct type of pain.

lgsdesigner

@gscoville- Hmmm...interesting. I had no idea you can O days after having O pain, but I can see how that makes sense. I will trust FF, then. Thank you for the information. Very helpful!

gscoville

marijaa333 said:

@gscoville good to know! how did you determine when your O pain wasn't reliable? That one seemed pretty convincing to me - it never happens other than on (around?) O day and is a very distinct type of pain.

I've always had pretty distinct (and sharp) O pains during my cycles while not on BCP, and just assumed they meant I was ovulating that day.  After about half a year of temping and using OPKs I came to realize that my pains weren't always on O day - sometimes I got them a day or two before I actually ovulated, sometimes a day or two after, only once in those six months was the pain on actual O day.  My OPKs and temps would line up in FF to give me a pretty definitive O day, but the pain just didn't always line up the same way.  Throughout the testing and medicated cycles I've done in the last year, my O date has been confirmed as lining up with my temps/FF, not always with my O pains.  I've also been on TTGP and TTCAL for a long time and have seen many women there who temp/chart faithfully and confirm that their O pains can happen before, during, or after actual ovulation, it's much more common than I had thought at first.

marijaa333

That sounds crazy to me (what on earth are we feeling, then??) but obviously great to know and I totally trust the experience - I've just started to chart. Thank you!

C_Girlie

I hate when ff does that