Early pregnancy happens because they are not using birth control. Most people have "premarital" sex, not just college students.
The cause of premarital pregnancy is having sex, just like marital pregnancy.
The causes of premarital sex can vary but may include peer pressure, curiosity, lack of education on safe sex practices, and cultural norms. Effects of premarital sex can include the risk of unintended pregnancy, sexually transmitted infections, emotional consequences such as guilt or regret, and potential impact on future relationships. It's important for individuals to make informed decisions about their sexual health and well-being.
It can not cause pregnancy.
Unprotected sex causes pregnancy.
Pregnancy.
Pregnancy.
sex
The same thing that causes pregnancy after menstruation: sex.
The cause of pregnancy is intercourse but that is probably not what you mean. Rephrase the question.
No, pills do not cause pregnancy. Sex causes pregnancy.
Pregnancy.
Pregnancy.