It depends on her cycle length. Some wom...

clindholm - February 27th, 2009 12:19 PM
 [Original Comment]

It depends on her cycle length. Some women are 25-28 days which is not a full month (average 30 days) so the fertile window will change by a couple of days each month. My cycle is like that, not always the same day of the month.

Well I guess it just comes down to how much you trust her. Unfortunately the only way to be 100% sure is to have a paternity test done once the baby is born but I'm sure you would rather know sooner. What is your gut feeling?

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