You can read more about calendar method here: https://ph.theasianparent.com/paano-maiiwasan-ang-pagbubunti Eto ding post ni Mommy Pehpot. 😊 https://m.facebook.com/story.php?story_fbid=2384866035078468&id=1428985173999897
May possibility pa rin mabuntis kasinhindi naman 100% safe ang withdrawal.
kahit sguro nasa safe days naman ako?
Anonymous