How reliable are fertility awareness-based methods for pregnancy prevention?

Fertility awareness-based methods (FABMs) help people avoid pregnancy by tracking natural signs of fertility. These methods include tracking menstrual cycles, body temperature, and other fertility signs.

Effectiveness

1. General FABMs: According to research, the effectiveness of FABMs can vary. Some studies show that, when used correctly, these methods can be quite effective. However, the effectiveness can decrease if not used consistently and correctly.

2. Marquette Method: This method incorporates technology, like fertility monitors, to track fertility. It has shown promising effectiveness in studies, but like all FABMs, requires proper use.

3. Standard Days Method: This is a simpler method relying on tracking the days of the menstrual cycle. It can be effective for women with regular cycles but is less reliable for those with irregular cycles.

FABMs require commitment and understanding of one's body. They can be a good option for those who prefer a natural approach, but it's important to be aware of the potential for human error, which can affect their reliability.