Do women realize that if she cheats & becomes pregnant, then her hubby/ beau will believe that it was planned or intentional?

I've read countless stories & posts where a woman confesses that she cheated on her partner and became pregnant by the other man. many times these same women try to explain their pregnancy as an "accident, mistake or unplanned."

My point is: Do these women actual believe that their partners believe them concerning their pregnancy by another man?

I could be wrong, but I highly doubt it. Most men I know would believe that the pregnancy was definitely intentional.

Ladies, do most of these affair pregnancies "just happened" or are they planned and intentional?

If so, then why would a woman in a relationship intentionally become pregnant by anther man?

Thanks for your response.