: The only 100% effective way to prevent pregnancy.

: A surgical procedure for women to "tie" the fallopian tubes.

In a clinical context, "birth prevention" often refers to delaying delivery in women at risk of giving birth too early (before 37 weeks). Preterm birth is a leading cause of neonatal mortality and long-term health issues.

: A tiny rod placed under the skin of the arm that releases hormones for up to 3 years.

: Hormonal options administered weekly, monthly, or every three months.

: Small devices inserted into the uterus that can prevent pregnancy for 3 to 10 years.

Contraception allows individuals and couples to plan the timing and spacing of children. Methods vary significantly in their mechanism of action and effectiveness.