After 4days of mens then my ngyari smin ni hubby, my chance po b n mbuntis?

Kung yung 4 days po is start sya ng 1st days of mens mo safe ka po. Pero kung do kayo ni hubby after ng mens or dugo m may chance ka po mabuntis.

ok or not? After 4days of mens then my ngyari smin ni hubby,