Raw Dog Calculator (Condomless Sex Risk Estimator)
Use this tool to estimate a personal exposure score and get quick next-step guidance for STI testing and safer-sex planning.
This calculator provides educational estimates only, not a diagnosis or medical advice.
Why this raw dog calculator exists
People make fast decisions, especially in dating and hookups. This tool gives you a practical way to pause and assess potential STI and pregnancy exposure after condomless sex. It is intentionally simple: you enter your recent behavior patterns, and it returns an easy-to-read score with next actions.
How the score works
The model combines behavior and prevention factors into a score from 0 to 100. Higher scores suggest higher potential exposure and a stronger need for near-term testing and prevention planning.
Inputs used in the estimate
- Unprotected encounters: More events create more opportunities for exposure.
- Number of partners: More partners generally increases network risk.
- Condom consistency: Partial or inconsistent use lowers protection.
- Days since testing: Long testing gaps can increase unknown risk.
- Risk context: Known local or partner-network prevalence matters.
- PrEP status: PrEP can reduce HIV risk when taken correctly.
Risk bands
- 0–20: Low estimated exposure
- 21–45: Moderate estimated exposure
- 46–70: High estimated exposure
- 71–100: Very high estimated exposure
What to do with your result
A calculator score is useful only if it leads to action. If your score is moderate or higher, consider booking an STI panel, discussing testing with partners, and reviewing your prevention strategy.
- Set a recurring testing cadence (for many people: every 3 months).
- Carry condoms and lube so protection is frictionless.
- Talk openly about testing history and boundaries before sex.
- If HIV exposure risk applies, ask a clinician about PrEP or PEP timing.
Pregnancy risk estimate (optional)
If pregnancy is relevant to your encounters, the calculator also provides a rough monthly probability estimate. This is not a fertility model and does not account for cycle timing, emergency contraception use, or medical conditions.
Limitations you should know
- Not all STIs behave the same way; transmission probabilities vary by act and pathogen.
- Symptoms are unreliable, and many infections are asymptomatic.
- Recent exposures may not be detectable immediately because of test window periods.
- Real-world risk depends on details this quick tool does not capture.