CFD 1220 Lecture Notes - Lecture 12: Coitus Interruptus, Emergency Contraception, Abortifacient
10 Oct 2018
School
Department
Course
Professor
Abstinence, Fertility Awareness, And Withdrawal
• Fertility awareness-based methods
o Abstention from intercourse during the fertile phase of the menstrual cycle
o Methods:
▪ Calendar method
▪ Temperature method
▪ Mucus method
• Withdrawal
o Coitus interruptus
o 22% failure rate
Combining Methods
• Couples can combine methods
o Added STI protection
o Increased contraceptive effectiveness
• Added benefits typically outweigh extra effort and expense
Contraception Methods and STI Protection
Emergency Contraception
• Used after unprotected sexual intercourse
• Emergency use only
o Not be relied on as a regular birth control method
• Not an abortifacient
o Inhibits or delays ovulation
• May prevent 75–95% of expected pregnancies if taken within 24 hours after intercourse
o Overall 89% reduction in pregnancy risk
• IUD’s can also be used for emergency contraception
o If inserted within 5 days of unprotected intercourse
Permanent Contraception
• Sterilization is the altering of the reproductive system to prevent pregnancy
o Permanent and highly effective
o Most common method worldwide
• In most cases, it cannot be reversed
• Male sterilization is often preferable to female sterilization
