Page 130 - Sex Manual Ebook
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to and including the day you ovulate. Still assuming a 28-day cycle, that
could be as early as four days from the day your last period started. If your
period lasts three days, you could be fertile just one day later, on day four
of your cycle. If your cycle is shorter than 28 days, or if your period is
longer than three days, you may even be fertile during your period.
If you're not trying to get pregnant, use reliable contraception, no matter
which day of your cycle it is.
