… when used to avoid pregnancy — and to achieve pregnancy, despite infertility issues! See the data in chart below:
And, here’s a medical story about how natural methods are as effective as the Pill.
One key to effective natural fertility methods is reading the female body’s signs; if you’re having trouble reading your fertility signs (especially mucus, that trickster!) because you’re a newbie, or are nursing/caring for a newborn, or your body just doesn’t send you the signals it’s “supposed to,” here’s a cheap, easy aid.
Once you learn the basics of Natural Family Planning (NFP) — signs and rules — and your own cycle, you’ll only use a few ovulation tests strips a month, max.