
Rough Odds: Pregnancy Risk
Accidents happen. What now?
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About
NOT MEDICAL ADVICE, NOT A MEDICAL DEVICE, NOT CONTRACEPTION. Full notice below and in the app. You must be 18 or older.
Rough Odds estimates the chance that unprotected sex resulted in pregnancy — one encounter, or several in the same cycle — from her cycle timing, and tells you what happens next.
BEFORE YOU INSTALL. This app estimates pregnancy risk only and says nothing about sexually transmitted infection. It is an estimate based on population averages and it can be wrong: only a test can answer this. It measures nothing, tests nothing and diagnoses nothing. It is sold for information, and the full notice — including the limits on our liability and Hong Kong governing law — is shown before the app opens and can be read at any time.
WHAT IT DOES
• Seven questions, about forty seconds.
• One figure: the top of the estimated range, not the middle — because the day she actually ovulated is the one thing it cannot know.
• What emergency contraception exists, how long each option's window is, and when a pregnancy test becomes reliable.
• A cycle tracker, and the whole calculation shown to you. No black box.
PRIVACY
This app has no account, no server and no analytics. Everything you enter stays on your iPhone. The only network connection this app makes is to Apple, to check the optional Extras purchase — it carries nothing about you or your answers.
Published by Gabe Bud Investments Limited.
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What's New in Rough Odds
1.0.6
September 30, 2026
Extras now sit together on the result screen, with the price shown before you tap. Save has moved next to the test date.
1
Subscriptions & In-App Purchases
$4.99
Rough Odds Extras
Multiple encounters, save estimates, FaceID, Doc report








