There are natural methods of birth control available. However, there are no birth control methods considered to be 100%, especially natural contraception. If a woman is sexually active and is fertile, she uses contraception, which is an artificial way to prevent pregnancy.
Natural methods of contraception are considered “natural” because they are not mechanical and not a result of hormone manipulation. Instead, these methods require that a man and woman not have sexual intercourse during the time when an egg is available to be fertilized by a sperm.
The fertility awareness methods (FAMs) are based upon knowing when a woman ovulates each month. In order to use a FAM, it is necessary to watch for the signs and symptoms that indicate ovulation has occurred or is about to occur.
On the average, the egg is released about 14 (plus or minus 2) days before a woman’s next menstrual period. But because the egg survives 3 to 4 days (6 to 24 hours after ovulation) and the sperm can live 48 to 72 hours (up to even 5 days in fertile mucus), the actual time during which a woman may become pregnant is measured not in hours, not in days, but in weeks.
FAMS can be up to 98% effective, but they require a continuous and conscious commitment with considerable monitoring and self-control. Although these methods were developed to prevent pregnancy, they can equally well be used by a couple to increase fertility and promote conception.