I'm waiting to have my Mirena removed, and would like to use the time by getting to know my cycle a bit.
Can't afford CBDFM, but noticed you can get used Personas for a lot less. Would there be any point getting one now and starting to try to track my cycle, even though I've still got the Mirena in and haven't a damn clue when ov happens if at all?
And if there is any point, do I just keep using the sticks until I've got a red light, or what?
No, you need 2 cycles between 23-35 days in length before you can start to use persona for reliable contraception. You can't use it until you have had 2 cycles without hormonal interference of any kind.