Ovulation predictors work by testing your urine each morning for the Luteinising Hormone (LH) surge which indicates the egg is shortly to be released.
There are monthly kits, generally comprising 5 testing sticks. They're easy to use and come with full instructions.
Or there is a system called "Persona". This is an electronic gadget that was originally designed to be used as a natural contraceptive. But, because it too records and reports an LH surge, you can use it as an ovulation predictor. You will have a high initial outlay for the device, and then purchase a set of sticks for use each month. The good thing about it is that you can use it for contraception after pregnancy / breast feeding.
If you try either of these methods and - after following the manufacturer's instructions - consistently fail to detect an LH surge, you may not be ovulating. If so, you should visit your GP for some initial tests.
Ovulation kits are available through our Shopping page.