We are always here for you, that is the reason for the forum! :o)
I'm sorry you are feeling down. But, never think that God is punishing you - He is not in the punishing business, but instead He is in the forgiving business. Ask for forgiveness and also forgive yourself. It is a very difficult process for a lot of women, but it can happen. Right now, you just concentrate on the life growing inside you - start bonding now. And by all means, no matter what your faith, start praying for that child.
You'll be just fine, and anytime you want to talk, we will all be here with listening ears and compassionate hearts.