Can Ovulation Prediction Kits be wrong?

[BeckiF]

It's a simple question, and I ask as I've not had a positive yet this month and I am on CD25. I am on Clomid and this is the 2nd and last month we are trying it before taking the IVF route. Just wondered if anyone has heard of false negative ovulation predictions and resulting pregnancies.

Sure someone who knows alot more about this than me can tell you for sure, but I think they can be wrong. I think you can miss the hormone surge by testing at the wrong time of day. I think I've read a few posts from people saying they tested negative with one brand, but positive with another etc on here if you search through some old threads. I think blood tests would be the only way to know for sure if you did ovulate (though again I may be wrong!).

Good luck!

I know I OV every month (had nice doctors tests), but quite often those sticks don't give me a positive reading. I know you're not supposed to use the first urine of the day, as you can have an LH surge in the morning, but it can be hard to detect.

It depends on your own physiology but I certainly know people they don't work for. If you have a very quick LH surge then you could miss it depending on when you are testing.

Have you got any change in the OPKs at all, even if not an official "positive"? Have you been taking your temperature and/or recording your cervical fluid at all?

BeckiF,

DO you have a diagnosis of the underlying problem?.

OPK's can be wrong and are problematic in their own right anyway. They work on two misleading principles namely that women have only one rise on LH every month and that such a rise is immediately followed by ovulation. Both of these statements are simply not true.

Clomid is usually given in cases where ovulation is problematic; using opk's in such circumstances is frankly a waste of both time and money.

A good day! I got the smiley face we've been waiting for ... let's see if it all comes together. Going for a blood test Friday as I seem to remember someone telling me on here that you should go for the tet about a week after your surge??? Is that right?

BeckiF - Thats what my consultant told me to do. That is when the results can be more certain. Go for your blood test about 7 or 8 days after you think you've ov'd. I have also read about it and have quoted from the book on 'the clomid gang' thread. Good luck!

I ovulate every month (v. reg 28 day periods + tests from docs confirmed), but I did those stick tests 3 months running from around day 10 to around day 22 and NEVER saw a positive. I only tried clear blue, but for me they were an expensive waste of time - now 8wks pg wihout them after 18mths ttc. Good Luck