Skip to Content
Home > Your Health > Health and Wellness Library > Interactive Tool: When Are You Most Fertile?
View Additional Section Content
This interactive tool estimates your peak
fertility period, also known as your "fertile window." This is when you are
most likely to get pregnant. Do not use this tool to prevent pregnancy.
the tool, you will enter the typical length of your menstrual cycle, and you
will click on the first day of your last menstrual period.
Your "fertile window"
is up to 6 days long, once a month. It includes:
If you want to become pregnant, try to have sex every day or every other day from your first fertile day to your last fertile day.
If your periods are irregular, this
calculator is not a good way to predict your ovulation dates. Do not use this
tool to prevent pregnancy.
For more information, see the topics
Fertility Problems. If you are looking for information
on birth control, see the topic
Other Works Consulted
Fritz MA, Speroff L (2011). Clinical Gynecologic Endocrinology and Infertility, 8th ed., Philadelphia: Lippincott Williams and Wilkins.
ByHealthwise StaffPrimary Medical ReviewerAdam Husney, MD - Family MedicineSpecialist Medical ReviewerKirtly Jones, MD - Obstetrics and Gynecology
Current as ofMay 30, 2016
Current as of:
May 30, 2016
Adam Husney, MD - Family Medicine & Kirtly Jones, MD - Obstetrics and Gynecology
To learn more about Healthwise, visit Healthwise.org.
© 1995-2016 Healthwise, Incorporated. Healthwise, Healthwise for every health decision, and the Healthwise logo are trademarks of Healthwise, Incorporated.
Communicate with your medical team, request medication refills and manage appointments through MUHealthe. Learn More
Schedule an appointment today with an MU Health Care provider.
Our support team is available 24 hours a day, seven days a week at 877-621-8014.
Our interactive Decision Points guide you through making key health decisions by combining medical information with your personal information.
You'll find Decision Points to help you answer questions about:
Get started learning more about your health!
Our Interactive Tools can help you make smart decisions for a healthier life. You'll find personal calculators and tools for health and fitness, lifestyle checkups, and pregnancy.
Feeling under the weather?
Use our interactive symptom checker to evaluate your symptoms and determine appropriate action or treatment.
Copyright ©2017 — Curators of the University of Missouri. All rights reserved. DMCA and other copyright information.
Equal Opportunity/Access/Affirmative Action/Pro Disabled & Veteran Employer. For website information contact the Office of Communications. Disclaimer