State employment laws may further support these rights. Many women, especially young women, have normally irregular periods. These irregularities may include missed periods and other changes in the menstrual cycle. These irregularities can happen from month to month. Although pregnancy is the most common reason for missing a period, irregularity is also caused by illness, travel, worry, or stress.
Regulations require schools to provide sexuality education as a component of health education.
Schools also must provide an AIDS prevention program.