To prevent pregnancy after sex, the main effective options are emergency contraception methods, which should be used as soon as possible after unprotected intercourse:
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Emergency Contraceptive Pills (Morning After Pills):
- Levonorgestrel pill (e.g., Levonelle): Take within 3 days (72 hours) after sex.
- Ulipristal acetate pill (e.g., ellaOne): Take within 5 days (120 hours) after sex.
These pills work mainly by delaying ovulation and are more effective the sooner they are taken.
-
Copper Intrauterine Device (IUD):
- Can be inserted by a healthcare provider within 5 days (120 hours) after sex.
- Most effective emergency contraceptive method.
- Can also serve as ongoing contraception for years.
Emergency contraception is available free at sexual health clinics, some GP surgeries, and some pharmacies in many places. It is important to act quickly after unprotected sex to maximize effectiveness. Other non-emergency methods to prevent pregnancy include consistent use of condoms, hormonal birth control, diaphragms, cervical caps, and contraceptive sponges, but these are preventative, not post-sex emergency methods.
Summary:
- Use emergency contraception pills within 3 to 5 days based on the type.
- Consider a copper IUD insertion within 5 days for highest effectiveness.
- Access emergency contraception promptly from clinics or pharmacies.
