Possible HIV exposure? PEP must start within 72 hours.

Mon–Sun · 09:00–21:00

Free, private self-check

Do I need PEP?

See how much of your 72-hour window is left, then answer three questions for guidance. Everything is calculated on your device and nothing is saved.

Step 1

How much of your 72-hour window is left?

PEP has to start within 72 hours of the exposure, and it works best the sooner it starts. Enter when it happened, or tap a quick option, to see your deadline.

  • Green: you are in time. Come in today.
  • Amber: more than 24 hours have passed. Please start today.
  • Red: less than 24 hours left. Come in right away.

PEP window check

72h
72 hrs left

Enter when it happened to see how long you have left to start PEP.

Calculated on your device. Nothing is saved.

Step 2

Answer three quick questions

Answer three quick questions for guidance. Your answers stay on your device.

1. When did the possible exposure happen?
2. What type of exposure was it?
3. What do you know about your partner’s HIV status?

This is general guidance, not a diagnosis. If you are unsure, talk to a doctor. It costs nothing to ask.

Possible exposure?

PEP must start within 72 hours. We can see you today.

Walk in, message a nurse or book online. Confidential, with no judgement.

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