Overpopulation has been an issue over the years. It has been a serious problem that can lead to severe poverty. One way to control this problem is through the use of effective contraceptives. This article may be helpful in determining effective contraceptive method to use.

Here are the three most effective types of natural contraceptive methods:

1. Abstinence - Abstinence refers to the complete refrain from sexual intercourse. This should be a mutual understanding between partners. You should learn to delay gratification. This also helps in the prevention of any sexually transmitted diseases. Refraining from the act gives 100% full protection. Abstinence is indeed a highly recommended type of natural contraceptive method.
2. Calendar method - Calendar method is based on the calculations of the woman's menstrual cycle length. A woman needs to keep track on her menstrual cycle. She makes an estimate of the number of days she is probably fertile based on her past menstrual cycle. Whenever the woman checks for her fertility based on the calculations, they must avoid sexual intercourse. If the woman is not fertile based on the calculations, sexual intercourse is possible. Calendar method is very easy. It is 100% effective.
3. BBT or the Basal Body Temperature - This is one of the reliable methods in determining a woman's fertility. This is based on her body temperature. The woman tries to check her basal body temperature upon waking up before going out of bed every day. If her temperature gets elevated of about 0.2 - 0.5 degrees Celsius consecutively, the couple should avoid sexual intercourse between the first days of menstruation until the third consecutive elevation of the body temperature. With proper monitoring, it would be 100% effective.

These three are the most reliable and 100% effective types of natural contraceptives. With these, overpopulation will no longer be a problem anymore. Choose these effective methods.