My husband had an affair that resulted in a child.
Since we reconciled I was told adultery is out of the questions, but now since it was determined to be his, can I file on the grounds of adultery, if I chose to leave?
Why do you need to prove adultery? You must prove that he committed adultery and you have not condoned it. Its pretty hard to prove that after 9 months or more. Once you have resumed marital relations you have condoned the behavior and a Judge is not going to grant a divorce based on adultery. That does not mean you do not have other grounds and can examine those other grounds for relief.