Fertility Friend's Ovulation Prediction

sitcom · July 2013

This is our second month of trying and I have yet to buy a BBT or an OPK, but I am just now starting with FF. AF paid me a visit yesterday and I was surprised to see that just after one cycle, FF gave me some fertility/ovulation predictions.

I know it's just based off my cycle and whatnot, but it's definitely a different set of days than the stupid Bump ovulation calendar gives me or any other "enter your last period date here!" mess. Does anyone know how accurate it is?

I know the best way to learn when I O is to temp and chart CM, but I was just curious if FF gives you a prediction, even if you're entering your temps/cm. Is it right on the days you O? Or is it totally off? I know you can O later in your cycle than you think and sometimes not O at all, so I wouldn't place money on FF's predictions, I just thought it was a nice guideline to have.

(Still gonna jump my husband EOD and chug some green tea, though. Will most likely buy a BBT this weekend.)

ETA: What brand of BBT do you guys like/use? Amazon has one by Nexcare on sale and it has some pretty happy reviews. Should I splurge for the digital to be more accurate (And by splurge I mean two more dollars so I answered my own question.)? Also - OPKs? Wondfo is what I keep hearing about, so yes on those too? Thanks, ladies!

LO95 · July 2013

No. If I hadn't been using an OPK from Kroger this month, I would have thought my O had passed. I ended up getting the typical CM and positive OPK two days after FF said I would.

MrsSparklesMcGee · July 2013

After several cycles of charting, FF can get a little more accurate, but as the saying goes - your cycle is normal until it's not and even FF can't predict that.

sitcom · July 2013

LO95:
No. If I hadn't been using an OPK from Kroger this month, I would have thought my O had passed. I ended up getting the typical CM and positive OPK two days after FF said I would.

Ooh gotcha! Good thing for the OPK, huh? Thank you!

sitcom · July 2013

Mrs.SparklesMcGee:
After several cycles of charting, FF can get a little more accurate, but as the saying goes - your cycle is normal until it's not and even FF can't predict that.

I need that embroidered on a pillow: Your cycle is normal until it's not.

Thank you!

sitcom · July 2013

MeatandBandP:
FF just goes off of an average of cycles you have previously entered. Since you only have one cycle it is going off of that. For me, FF now does not give me predictions and has me labeled as an irregular cycle.
If you are rarely regular I would imagine there predictions would be pretty close.
I like my mabis BBT and wondfo OPKs.

Gotcha. Without sounding like a total dope, what is considered "irregular"? I consider myself regular, even if I'm one to two days off of my expected AF. Is irregular a bigger stretch? Like past a 35 day cycle or something? Curious about that.

Thanks for your help and your recommendations!

TravelingCouple · July 2013

This is my second but first full cycle using FF and so far their O prediction hasn't been accurate it says next Friday but looks like I'm gearing up to O in the next couple of days. I second Mabis bbt and wondfo opks. You can always buy a couple of digitals to back up your peak day but wondfos have worked just fine for me.

sitcom · July 2013

MeatandBandP:
sitcom:
MeatandBandP:
FF just goes off of an average of cycles you have previously entered. Since you only have one cycle it is going off of that. For me, FF now does not give me predictions and has me labeled as an irregular cycle.
If you are rarely regular I would imagine there predictions would be pretty close.
I like my mabis BBT and wondfo OPKs.
Gotcha. Without sounding like a total dope, what is considered "irregular"? I consider myself regular, even if I'm one to two days off of my expected AF. Is irregular a bigger stretch? Like past a 35 day cycle or something? Curious about that.
Thanks for your help and your recommendations!
My cycles have ranged from 32-54 days.
1-2 days wouldn't be irregular. I wouldn't consider anything within 5 days (either ways) of your normal length irregular. I'm not sure what the technical 'rule' is though.

Okay, that makes sense! Thanks!

Wildfire2011 · July 2013

I think if you just put in the dates of when your previous period and your current period started, FF will just assume you will ovulate midway through the cycle and make predictions off of that. Of course, you could ovulate sooner or later. Once you start temping, FF will revise your calender to show you your actual ovulation date and fertile window (but you won't know until after O has already happened most likely). Doing the OPKs can give you a heads up right before you're about to O. But if you HIO every other day you should be ok regardless, I would think. And I also assume FF relies more on when you have a sustained thermal shift to pinpoint O, but it's nice if the OPKs and CM line up (they won't always though).

I am using the NexCare digital BBT from Amazon but it reads only to the tenths place. That seems to be working well for me - I have a clear temp shift so far. However, other people seem to like the Mabis one from Walmart, which reads out to the hundredths place. Either way.

Sorry it didn't work out this cycle, but good luck with the next one!

ETA: certainly your O date could change from month to month, so unless you are like clockwork, then expect the predictions could be a bit off

KP0908 · July 2013

Definitely get the digital. I got one that records the last temp, so I can go back to sleep and check it when I really wake up and record it.

crwel1048 · July 2013

They all gave you great advice on ovulation and FF. I just wanted to add that I have the Mabis BBT from Walmart.

johnsonscharosch · July 2013

FF is a great tool to use, especially for me to be able to see that I did in fact ovulate with my temping. I still cross check everything myself and by that I mean, I use OPK's every cycle, I watch my cm, I temp... It is going to get you the best result the longer you use it. It is telling me that this month I should have AF at 21 days instead of 28 like usual because I O'd earlier than usual. So make sure you keep track of everything... But bottom line is that it's going to get close, but its still just an app. Good luck!!

Twinkie0612 · July 2013

sitcom:

This is our second month of trying and I have yet to buy a BBT or an OPK, but I am just now starting with FF. AF paid me a visit yesterday and I was surprised to see that just after one cycle, FF gave me some fertility/ovulation predictions.

I know it's just based off my cycle and whatnot, but it's definitely a different set of days than the stupid Bump ovulation calendar gives me or any other "enter your last period date here!" mess. Does anyone know how accurate it is? It's based of of cycle length and average LP. It might be acurate or it might not be accurate. It's hard to say.

I know the best way to learn when I O is to temp and chart CM, but I was just curious if FF gives you a prediction, even if you're entering your temps/cm. Is it right on the days you O? Mine are right most of the time. I had a month or two where I ovulated earlier or later than FF perdicted.Or is it totally off? I know you can O later in your cycle than you think and sometimes not O at all, so I wouldn't place money on FF's predictions, I just thought it was a nice guideline to have.

(Still gonna jump my husband EOD and chug some green tea, though. Will most likely buy a BBT this weekend.)

ETA: What brand of BBT do you guys like/use? I used Mabis from Walmart. After my second Mabis died, I ended up using a regular thermometer for awhile. Both worked fine for me. Amazon has one by Nexcare on sale and it has some pretty happy reviews. Should I splurge for the digital to be more accurate (And by splurge I mean two more dollars so I answered my own question.)? I would use a digital. There was no way I would be awake enough at 5:00 am to read a non digital thermometer.Also - OPKs? Wondfo is what I keep hearing about, so yes on those too? I never had a problem with Wondfo OPKs (I did have an issue with the knock off Wanfu though. They never turned +, even when I got a + digital OPK). A few cycles I confirmed + Wondfos with digi OPKs. It wasn't really necessary, but I liked seeing the smiley face. Thanks, ladies!

dragonfly711 · July 2013

CVS thermometer here, with Wonderflo's I usually use digital to confirm. This month started using CBFM.

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