31 day cycle when do i start using opks?

[mummyto3]

im really confusedas i only have 10 tests and dont wanan run out?

 

[babygirlhall]

The opks that i use came with a chart to tell you when to test, it says for a 31 day cycle to start testing on cd14.
Hope that helps and good luck

 

[dt1234565]

The clearblue website has a chart you can enter data on for your fertile period and when to start testing xxx

 

[mummyto3]

oooh tank peps x