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

: Silicone cups used with spermicide. Permanent Methods (Sterilization) :

: Tracking menstrual cycles to identify fertile days. 2. Prevention of Preterm Birth

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

: These require regular adherence but are highly effective when used correctly. Oral Contraceptive Pills : Taken daily to prevent ovulation.