Jesus lived countless lives; thus, it would stand that he had countless mothers. Furthermore, Jesus, Simeon Peter, and Mary Magdalen believed that life after death was rebirth or reincarnation. 
Unfortunately, the good old boys decided at the First Council of Nicea, that this isn't what Jesus meant by life after death.
I would add, that these same folks discount the Gospels of Mary, Judas, and Simeon Peter. Funny thing is, Paul, who never spent a second with Jesus made it into the club, but Mary, Simeon, and Judas who spent a life time with Jesus didn't? Go figure....