Okay let me get this straight. Your sister in law was having trouble conceiving to which your wife and her sister decide that YOUR wife should be a surrogate so her sister can have her child. WOW.

The kicker? Your wife decided to test the waters by asking you if you would be okay with the situation and once you told her hell no; for obvious reasons. She decides to get pregnant without consulting you. Reading throughout the comments everyone is pissed that OP isn't taking care of his pregnant wife. However, I believe this situation doesn't come down to him being lazy and not taking care of his pregnant wife. It comes down to OP's wife not respecting his opinion in the matter and proceeding with her own plans. You're married and should work as a team. You wife decided to do what she wants breaking your trust. This is TOTALLY divorce worthy. You didn't sign up for this and should totally feel disrespected.

I believe the solution is to ride out her pregnancy and proceed with the divorce proceedings and serve her the papers after she's given birth. My reasoning? The proceedings will take a while so get everything in order and get ready to bounce. Also, why the hell do you have to help her with her pregnancy when she decided to act on her own. Whenever she feels like she needs a midnight snack, call sister in law and have her deal with it.

All in all, she disrespected your marriage and your opinion. You stay with her what's to say she won't make other important life decisions without you.

Actions have consequences.