Your fertility window is a medium chance of getting pregnant. I suggest momshie, you track your monthly period, there is an app for that I also use it too because I don't want to get pregnant anymore and I am also breastfeeding my baby.
Basta walang protection there is always a chance na mabuntis. Napaka unreliable ng withdrawal method.
download nyo po yung flo app para malaman nyo po kung kelan kayo fertile ..