Unintended pregnancy
When people have sex, but do not use contraception, a pregnancy can result. Worldwide, almost half the pregnancies, about 45% of them, are unintended pregnancies. The exact figure varies by geographic region, by level of education, and other socioeconomic factors.  Unintended pregnancies may be unwanted pregnancies or mistimed ones. An unintended pregancy is one of the main reasons, why a woman chooses to have an abortion.  Depending on the circumstances, a miscarriage can occur.