Uh oh, did you manage to get yourself in some "trouble"?
Any hows, my opinion on this is that a mans peepee cannot get a chick preg without her vag being involved. Therefor I think that if both parties agree on the services than it should be 50/50.
How about you get two pregnant chicks who both want an abortion and setup a fight night type of deal? The two pregnant girls stand in a ring and punch/kick the shit out of each other. You can charge for viewing and both broads end up with an abortion from the beating they received from each other.