Fertile window represented with a circular illustration of the menstrual cycle, highlighting the pregnancy window
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What is the fertile window?

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Written by Lauren McKay

Lauren McKay

Lauren McKay is a writer and journalist with more than ten years of experience writing across a variety of topics. She is a passionate advocate for driving women’s health knowledge and is a trained yoga teacher. She earned a Masters in Creative Writing from the University of Glasgow and currently lives in Scotland.

Medically reviewed by Jack Pearson, Medical Affairs Manager at Natural Cycles

Jack Pearson

Dr. Jack Pearson is a previously HCPC registered Embryologist with a PhD in reproductive medicine. Prior to joining Natural Cycles leading Medical Affairs, he worked for more than 10 years in a clinical setting working at some of the busiest fertility clinics in the UK. Today he spends most of his time working with experts at the world’s leading institutions to carry out important research with the vision to further the field of female health. He earned his PhD from the University of Sheffield specializing in Sperm Metabolism and currently lives in London.

Contrary to popular belief, you can’t get pregnant every day of your cycle. There is actually a small number of days when it’s possible to conceive. So, what is the fertile window? Read on to find out when you are most likely to conceive, when’s the best time to get pregnant, and how understanding the fertile window can also prevent pregnancy...

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