Yes. However, couples must be highly motivated, well-trained in their method, and committed to avoiding unprotected sex during the fertile time.
It depends. For many couples, these methods provide reliable information about the fertile days. If the couple avoids vaginal sex or uses condoms, a cervical cap or diaphragm during the woman's fertile time, fertility awareness methods can be effective.
Using spermicides or the withdrawal method during the fertile time is less effective and not recommended.
The number of days vary based on the woman's cycle length. The average number of days a woman would be considered fertile varies between 12 to 18 days, dependent on the fertility awareness tracking methodology. To avoid an unintended pregnancy, you must use another contraceptive method during your fertile days.
The chances of achieving pregnancy when a woman is on her period are low, but not zero. Bleeding itself neither prevents nor promotes pregnancy. In the first several days of a woman’s menstruation, the chances of pregnancy are lowest. As the days pass, the chances of pregnancy increase, whether or not she is still bleeding. The risk of pregnancy rises until ovulation. The day after ovulation the chances of pregnancy begin to drop steadily.
Not sure how to broach the topic of sex and contraception with your partner, parents, or doctor? We’re here to help.
Accessed on September 6, 2016