Calculators & Tools.

Math and mechanics over guesswork. Use these tools to understand risk profiles, biological timelines, and efficacy rates.

Contraception Efficacy Matrix

Compare statistical failure rates of different methods.

Open Matrix Tool

Menstrual Cycle Predictor

Estimate fertile windows based on luteal phase math.

Open Predictor Tool

STI Window Period Checker

Know exactly when to get tested after exposure.

Open Window Checker

Internal Knowledge Graph

Explore the full interconnected architecture of the Institute.

Anatomy
Anatomy/Vulva
Anatomy/Penis
Contraception
Contraception/Pill
Contraception/Iud
Stis
Stis/Hiv
Consent
Consent/Scripts
Pleasure
Pleasure/Neurobiology
Tools
Glossary
About
Anatomy/Endocrine
Anatomy/Nervous
Stis/Testing
Consent/Ethics
Pleasure/Lubrication
Stis/Prep