Disadvantages of Natural family planning

| A |

| B |

| C |

| D |

| E |

| F |

| G |

| H |

| I |

| J |

| K |

| L |

| M |

| N |

| O |

| P |

| Q |

| R |

| S |

| T |

| U |

| V |

| W |

| X |

| Y |

The disadvantages are:

It relies heavily on the ability to accurately work out the fertile periods each month. If the indicators are not correctly calculated the method has a high risk of failure.
It demands a high level of organisation and it will take as long as six months to discover the fertile period. During this time, the diary of indicators must be keep every day to ensure that the records are accurate.
The indicators may be hard to understand if the woman is tired, stressed or ill.
It does not provide either partner with protection against infection of sexually transmitted diseases.