Understanding Contraception. Which Birth Control Method Is For You?
What is contraception?
Pregnancy is a result of a man’s sperm reaching a woman’s egg and fertilizing it. This can be prevented by contraception.
Contraception works by:
- Keeping the sperm away from the egg
- Blocking egg production
- Making it hard for an egg to be implanted on the wall of the womb lining.
There are different methods of contraception to suit the different needs and lifestyles of women. To choose a contraceptive method that works best for you, your doctor or pharmacist might also ask you several questions including:
- Your age and weight
- Whether you smoke
- Your medical history
- Medications you are taking (if any)
Some contraceptive methods, such as the combined oral contraceptive pill, progestogen-only pill and patch, require you to be organized and to remember to take/apply them on time.
The frequency of using the contraceptive method and its effectiveness might also affect your choice.
Method | Frequency | Effectiveness |
Diaphragm with spermicide Contraceptive cap with spermicide | Inserted just before sex | 92-96% |
Male and female condoms | Used/inserted just before sex | 98% (male condom) 95% (female condom) |
Combined oral contraceptive pill Progestogen-only pill | Taken daily | >99% |
Natural family planning | Daily monitoring throughout the menstrual cycle | >99% |
Contraceptive patch | Replaced weekly | >99% |
Vaginal ring | Replaced monthly | >99% |
Contraceptive injection | Renewed 3-monthly | >99% |
Contraceptive implant | Renewed every 3-years | >99% |
Intrauterine device (IUD) | Renewed every 5 years/inserted within 5 days after sex | >99% |
Intrauterine system (IUS) | Renewed every 5 years | >99% |
Male and female sterilisation | Permanent | >99% |
* If used correctly/according to instructions
Note: All the contraceptive methods mentioned above (except condoms) prevent pregnancy but do not protect you against sexually transmitted infections (STIs). Condoms are the only contraceptive method that can also protect against STIs. You may want to discuss with your doctor or pharmacist to find out which contraceptive method best suits your needs and lifestyle