It sounds like you are taking this very rationally right now. Very probably you will find yourself facing a range of emotions over the coming days, weeks and months. If your insurance covers it, you many find counseling very helpful to get through this. The repercussions go beyong the emotional, he will be financially responsible for this child for the next 18-21 years. This isn't something you can just deal with and put behind you. This woman will never really be out of your lives, you are going to have to determine if you can handle that.