Contraceptive implant

What is it? It's a small flexible rod (about an inch in size) that is inserted under the skin of the upper arm, It slowly releases the hormone progestogen which prevents eggs from being released from the ovaries, sperm from reaching an egg or an egg settling in the womb.

Advantages: The implant is a good method for women who want a long-term contraceptive, as each implant lasts for three years (but can be taken out sooner). The implant doesn't interrupt sex and may reduce heavy or painful periods. It also works immediately after it has been fitted. 

Considerations: Periods can become irregular or stop altogether. Implants do not offer protection against sexually transmitted infections or HIV/AIDS. Some women experience temporary minor side effects including tender breasts, spotty skin or headaches. 

Available from? GP, family planning clinics, Marie Stopes International centres.

How effective? 99%, less than one woman in 1,000 will get pregnant over three years.