Well, to me. It seems that you already know that your
relationship with him was a game to him. It was a agreement between
the both of you. Making him own up for a child that he never wanted
is not really possible and besides, he would not leave his wife for
you.
Which leads to another question. You already know that he has a
family and his family would not break even if the news of you being
pregnant travels to his wife. That shows you the strong tolerance
and ties within that family. So, you just have to accept the fact
that you are going to be a single mom in this case.
Would it bring you a smile to break a family and yet you still
being single?
If not, why not just stick to your decision to bring up your
child by your own?