this is the first time i'm in a TWW where i think i may have actually Oed, so i'm feeling impatient. i'm wondering how to count days past O. i know if you're charting you can see if & when you actually Oed, but if you are using OPKs or a monitor, those show you when you're about to O, right? so how do you count how many days past O you are? i had a peak on my monitor on friday & saturday mornings, but a negative digital OPK friday night. not sure what that all means! but what day do you think i count as O day? they say 10DPO is when you could start testing, so ten days after first peak or no because the peak is telling you you're gearing up to O but not O day?