I'd abort, and save the poor kid an uncertain future.
Hoping to miscarry whilst actively avoiding an abortion doesn't make a lick of sense to me. It's the same ends, just with different means; to spare yourself some guilt?
Flipping a coin with a human life to benefit yourself financially is far from kosher in my eyes.
Now I'm no zealot, but I don't think the big man is going to start smiting people for using contraception, either. If your god is as omnipotent as he's cited as being, I think he might pick up on some of the contradictions presented here, lord knows I did.