I don't suppose the Jewish faith prohibits multiple wives (we have the example of one of their heros, David) but the Biblical accounts don't say Joseph had any other wives before Mary.
Not that I trust those accounts on much of anything. IMO, anything written thirty years after the death of a martyr by people promoting the faith must be called into question. And of course they would all portray Joseph, the father, as a guy who was pure as the driven snow. Joseph might have been a mighty philanderer so far as we know.
(And, as far as we know, the "virgin birth" may very well have been due to some... shall we say... playing around between Joseph and Mary. If Clinton didn't know what "is" or "sex" meant, sure as hell Mary and Joseph didn't.)