Teacher Fired for getting pregnant

Appleton WI:

A teacher at a private school in WI was fired for getting pregnant. Was it because she was not married or had an extra-marital affair? Was it because she had sex with a student?

Not this teacher. It seems like her only "sin" was the method that she used to get pregnant. This teacher, and her husband who attempted for years unsuccessfully to have babies on their own used "invitro" to become pregnant. But now this teacher is jobless and reconsidering her faith.

Was it right for this teacher to get fired by the school?