What factor may impact the effectiveness of natural family planning?

Natural family planning (NFP) relies on recognizing and interpreting signs of fertility to avoid or achieve pregnancy. The effectiveness of NFP can be significantly influenced by the frequency of intercourse.

When couples are trying to avoid pregnancy, having a higher frequency of intercourse during the fertile window can increase the risk of conception, even if they are tracking fertility signs closely. Conversely, if intercourse is infrequent, it increases the ability of couples to plan appropriately around the woman’s fertile days, thus improving the effectiveness of their natural family planning efforts.

The nuances of sexual activity, including when and how often intercourse occurs relative to the cycle, directly affect how well NFP can work for couples aiming to prevent or achieve pregnancy. It's crucial for individuals practicing NFP to be aware of their intimate patterns and align those with their understanding of the menstrual cycle. This awareness and timing are vital to the success of natural family planning methods.