Consider the following statements regarding Contraceptive Methods and Family Planning:
1. The "fertility awareness method" relies on tracking a woman's menstrual cycle and identifying the fertile window to avoid or achieve pregnancy, and can be as effective as hormonal methods when used accurately.
2. Sterilization procedures, such as tubal ligation for women and vasectomy for men, are 100% effective in preventing pregnancy.
3. Birth control pills require a prescription from a healthcare provider in most countries, but can often be obtained over the counter in some regions.
How many of the statements given above is/are correct?