AJM - In a weird way, your situation is a little similar to mine. My wife and I had been married for a couple of years. In love. Decided that we wanted to have a baby. My wife became pregnant after a few months of trying. All is well.
Then she decides to have an affair with a woman while she was just three months pregnant. The affair continued physically up to the birth of our baby boy. It continued for another 5 months until I discovered it. The OW had been married for several years, knew she way gay, tried for years to have a baby but couldn't. It is just so psycho, but my wife told me that she pursued other OW.
It is amazing to me how that decision was made to have the affair. How can you know that a child that the two of you made is coming into this world, and you are going to make a horrible decision that will change its life forever?
My heart truly goes out to you.
Me - 33 W - 33 S - 9 months M - 3 years T - 5.5 years Bomb - 12/14/10 ILYBNILWY PA discovered - 1/18/11 PA began - 3/22/10 Separated