I have been using the CBFM for 4 months now. Each cycle seems to be 27 days, but I ovulate really randomly. First month I got my first peak reading CD10, second month no peak (although I had my HSG done on CD10, so I'm expecting that to have affected that month), third month was CD12, and this cycle i detected my peak this morning - CD9.

Does anyone else find their ovulation days are all over the place?

Mind you, I'm glad I've got my CBFM -at least I haven't missed my most fertile time...

Any thoughts would be welcomed...

Ive only used my monitor for two cycles so far but ovulation varied by a day even though AF came on the same day.

First cycle i got a peak on cd15 second cycle i got my peak on cd16

Id imagine the peaks would always very by a day each cycle but wouldnt be anything to worry about.

I was the same... ov dates differed but AF always spot on (the witch)

i love the cbfm, tho..i think its a great aid..here's some babydust for ya!

i can't waiti to use by cbfm for the first time next month, my ovulation days are all over i think ?? so it should really help me

I found it really helpful. I thought my cycle varied between 24 and 29 days, but since using the CBFM I've discovered that my cycle is 27 days - or at least it has been since using it... It is really easy to use. Good luck

PS Love the wedding pic xx

I wish I could help, I'm only on my first cycle using it. Still LOW on CD 10

My first month using it, it went from low one day to peak the next without any high days in between. I think it takes a while for it to get used to your hormone levels.

Good luck

My first cycle using it I was peak on CD 16 and 17 this cycle peak on cd15 and 16????

That happened to me aswell Linds but i had 15/16 and 16/17

I hate to re-start an old debate but could it be that you are starting the cycle on the wrong day. There was a thread in here recently which highlighted how difficult it can be decide which is CD1!

I don't use a monitor so I could be talking pants, but just a thought.....