--- title: Fertility Calendar | InVia Fertility Center Chicago, IL description: Use the fertility calendar from InVia Fertility Center in Chicago, IL to find out when you may be most fertile. Find the fertility calendar here. --- [![invia_fertility-logo](https://www.inviafertility.com/hubfs/zInviaFertility/logos/invia_fertility-logo.png) ](https://www.inviafertility.com/) - For Patients - [Patient Portal](https://portal.inviafertility.com/PatientPortal) - [CareSync Patient App](https://www.inviafertility.com/caresync-patient-app) - [Patient Forms](https://www.inviafertility.com/patient-forms-consents) - [Injection Videos](https://www.inviafertility.com/invia-fertility-injection-videos) - [Pay Your Bill](https://personapay.com/inviafertility/) [** 8478848884](tel:+18478848884) - [About Us](https://www.inviafertility.com/about-us) - [The InVia Fertility Staff](https://www.inviafertility.com/meet-the-staff) - [Dr. Karande](https://www.inviafertility.com/about-us/dr-karande/) - [Dr. Klipstein](https://www.inviafertility.com/about-us/dr-klipstein/) - [Dr. Puscheck](https://www.inviafertility.com/about-us/dr-puscheck) - [Dr. Luu](https://www.inviafertility.com/about-us/dr-luu) - 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[LGBT](https://www.inviafertility.com/lgbt-surrogacy-fertility) - [Resources](https://www.inviafertility.com/fertility-resource-page) - [Fertility Calendar](https://www.inviafertility.com/easy-to-use-fertility-calendar) - [Intro to Assisted Reproductive Technologies](https://www.inviafertility.com/faq/learn-more/assisted-reproductive-technologies/) - [FAQ](https://www.inviafertility.com/faq) - [About Infertility](https://www.inviafertility.com/what-is-infertility) - [Fertility Resources](https://www.inviafertility.com/fertility-resource-page) - [Causes of Infertility](https://www.inviafertility.com/causes-of-infertility) - [Diagnosing Infertility](https://www.inviafertility.com/diagnosing-infertility) - [Glossary](https://www.inviafertility.com/glossary-fertility-terms) - [Early Pregnancy](https://www.inviafertility.com/faq/early-pregnancy-starting-out-right) - [Learn More](https://www.inviafertility.com/faq/learn-more) - [Webinars](https://www.inviafertility.com/invia-fertility-webinars) - [Videos](https://www.inviafertility.com/invia-fertility-videos) - [Blog](https://www.inviafertility.com/blog) - [**](https://www.facebook.com/InviaFertilitySpecialists/) - [**](https://twitter.com/inviafertility) - [**](https://www.linkedin.com/company/invia-fertility-specialists/) > ## Fertility Calendar > > Are you having trouble getting pregnant? It’s possible that your timing is off. Using our fertility calendar below, you can follow two simple steps to find out when you’re most likely to be fertile—and when the best time to try for a baby should be. First day of most recent menstrual period Number of days in cycle (Average is 28) Number of days 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 ![shoe-2](https://www.inviafertility.com/hubfs/shoe-2.png "shoe-2") ## Maximize your Chances of Getting Pregnant The best time to try for pregnancy is in the three days leading to ovulation-the so called "fertility window". You can take some additional simple steps to increase your odds of natural conception: **Have intercourse often and time it with your fertility window **Maintain a healthy lifestyle - get adequate sleep and regular **Reduce consumption of coffee and eliminate alcohol altogether **Stop smoking ## Still Having Trouble Trying to Conceive? If you've been trying to get pregnant for six months to a year with no success, it may be time to seek specialist help. Make an appointment at one of our four Chicago-area fertility clinics. [![Schedule an Appointment](https://no-cache.hubspot.com/cta/default/389004/409131ba-72b5-4c05-a66e-d596c18e7be7.png)](https://cta-redirect.hubspot.com/cta/redirect/389004/409131ba-72b5-4c05-a66e-d596c18e7be7) ** - [About Infertility](https://www.inviafertility.com/what-is-infertility) - [Causes of Infertility](https://www.inviafertility.com/causes-of-infertility) - [Diagnosing Infertility](https://www.inviafertility.com/diagnosing-infertility) - [Unexplained Infertility](https://www.inviafertility.com/what-is-infertility) - [Glossary](https://www.inviafertility.com/glossary-fertility-terms) - [Treatment Options](https://www.inviafertility.com/treatment-options) - [Egg Freezing](https://www.inviafertility.com/treatment-options/egg-freezing/) - [Female Infertility Treatment](https://www.inviafertility.com/treatment-options/female-infertility-treatment/) - [Male Infertility Treatments](https://www.inviafertility.com/treatment-options/male-infertility-treatments) - [Sample Semen Analysis](https://www.inviafertility.com/treatment-options/sample-semen-analysis/1) - [Egg Donor & Surrogacy](https://www.inviafertility.com/egg-donor-and-surrogacy) - [Find Egg Donor](https://www.inviafertility.com/find-an-egg-donor) - [Surrogacy](https://www.inviafertility.com/surrogate-pregnancy) - [International](https://www.inviafertility.com/international-surrogacy) - [LGBT](https://www.inviafertility.com/lgbt-surrogacy-fertility) - [Donate Eggs](https://www.inviafertility.com/blog/how-many-times-can-you-donate-eggs) ![](https://www.inviafertility.com/hubfs/zInviaFertility/footer/invia-footer_logo.jpg) Entire Website © 2003 - 2020 Karande and Associates d/b/a InVia Fertility Specialists [Terms Of Use](https://www.inviafertility.com/invia-fertility-website-terms-of-use) | [Privacy Policy](https://www.inviafertility.com/privacy-policy) | [Notice of Privacy Practices](https://www.inviafertility.com/hubfs/2025%2012%2030%20-%20NPP%20InVia.pdf) *Our Partner:* ![Chicago Coalition for Family Building](https://www.inviafertility.com/hubfs/CCFB%20logo.jpg)