My BFF is pregnant and guess what??

She just found out her husband had a vasectomy 5 years ago from his mother...they've been married for 3 and he never told her, and he didn't say anything when she told him she was pregnant. She said he was overly excited. His mother hasn't said anything to her son yet, but I'm sure shid will hit the fan tonight. ...wow how is she going to explain this one?