English: The Fertile Window or Fertility Window, marks the eight days with the highest chance of getting pregnant during a woman's menstural cycle when having intercourse. It is also known as targeted intercourse and it is used in fertility awareness methods. The Fertile Window typically ranges from day -7 to day +2 with day 0 as the ovulation date. Although not all studies have found couples getting pregnant every day during this time, it typically spans to approximately 8 days, from day -6 to day +1 from the ovulation date. The average chance of getting pregnant during this 8 days interval is typically higher than 2%. The Fertile Window (FW) or chances of getting pregnant can be affected by many factors including age, health, sleep, etc. Thus, even though the span of 8 days is normal, the height (or probability) in this chart can be lower or higher.

References:

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