Hi Jodie
Many thanks for your email - I bought mine ages ago and have had really long cycles so have not had a chance to use them until recently. However I will only read the results at 5mins then discard them.

I think I am going to be one of those people who never see a true +ve. Still thanks again - I am on CD18 and my temps are not showing anything like a rise so I don't think I have O'ed yet. I have a feeling this is going to be a very long cycle again!! Good job I have about 70 OPKs left