I have a ? about charting and useing OPKs . I am charting for the first time and we are TTC . I am CD 10 and just wondering when do you start POAS (OPKs) I am not sure when I should start using my opk strips . I don't think I O until around CD 18 but that was when I had an IUD in and my AF was much longer (10 days ) . Now that the IUD has been removed my AF was very short (5days) . I am just a little unsure when to start ...
Thanks in advance for your advice ... It is greatly appreciated