Natural family planning

[LinuxGal]

And, so, per Church teaching, simply "ask(ing) God directly to forgive your sins" may not be sufficient.  The paragraph prior outlines the Church's vuews:

1452 When it arises from a love by which God is loved above all else, contrition is called "perfect" (contrition of charity). Such contrition remits venial sins; it also obtains forgiveness of mortal sins if it includes the firm resolution to have recourse to sacramental confession as soon as possible.