| http://www.w3.org/ns/prov#value | - I???m a nurse, so I know there is only a small fertile window, but there are always exceptions, and new research has shown that sperm can live for up to 7 days, so that can potentially mean falling pregnant at least 7 days per cycle ??? and for women who have a short cycle (mine is 24 days and I know of shorter ones), that soon adds up, especially as some women have periods 7 days or longer.
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