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Family Planning: A Global Handbook for Providers

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Family Planning

A GLOBAL HANDBOOK FOR PROVIDERS

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Vertical arrow pointing up showing the effectiveness of Progestin-Only Injectables. The bottom of the arrow is less effective and top of the arrow is more effective. A black bar is near the top of the arrow.How Effective?

Effectiveness depends on getting injections regularly: Risk of pregnancy is greatest when a woman misses an injection.

  • As commonly used, about 3 pregnancies per 100 women using progestin-only injectables over the first year. This means that 97 of every 100 women using injectables will not become pregnant.
  • When women have injections on time, less than 1 pregnancy per 100 women using progestin-only injectables over the first year (3 per 1,000 women).

Return of fertility after injections are stopped: An average of about 4 months longer for DMPA and 1 month longer for NET-EN than with most other methods (see Question 7).

Protection against sexually transmitted infections (STIs): None

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