Simply enter the optional information and press the “Calculate” button. The more information you enter, the more accurate the results will be. Don’t worry, we don’t store your data.

This calculator is designed to estimate pregnancy odds over a real or hypothetical period of time.

Contraceptive Method: During the period of time, what contraceptive method did you use?

Did you use this method perfectly: During the period of time, did you use this method perfectly? Or did you, for example, forget to take a pill, or have a condom break?

Intercourse Times: During the period of time, how many times did you have intercourse?

Female Age: During the period of time, what was the age of the female participant?

This product is based on peer-reviewed scientific research to provide accurate estimates of pregnancy odds. However, it is not a substitute for professional medical advice, diagnosis, or treatment. Always consult with a healthcare provider for any medical concerns or questions about your fertility.

We value your privacy. The data entered into this product is used solely for the purpose of generating your pregnancy odds estimate. We do not store nor share any personal information. All data is securely disposed of immediately after the calculation is complete to ensure the protection of our users’ privacy.

Simply enter the optional information and press the “Calculate” button. The more information you enter, the more accurate the results will be. Don’t worry, we don’t store your data.

This calculator is designed to estimate pregnancy odds over a real or hypothetical period of time.

Contraceptive Method: Simply select a methods from the drop down menu; if you don’t/didn’t use contraceptives, leave as “No Contraceptive”.

Did you use this method perfectly: During the period of time, did you use this method perfectly? Or did you, for example, forget to take a pill, or have a condom break?

Intercourse Times: During the period of time, how many times did you have intercourse? (e.g. 50)

Female Age: During the period of time, what was the age of the female participant? (e.g. 37)

Male Age: What is the male participant’s age? (e.g. 39)

Female Height: What is the female participant’s height? (e.g. 60 in)

Female Weight: What is the female participant’s weight? (e.g. 180 lb)

Work Hours per Week: How many hours do you work per week? (e.g. 25)

Daily Cigarettes: How many cigarettes do you smoke per day on average? (e.g. 5)

Weekly Alcohol Intake: How many standard alcoholic drinks do you drink per week? (e.g. 3)