My father filed a petition for me to the US I was unmarried and under?
USCIS may not be aware of it but when the time comes to submit your identification records, it will show that you were married and now divorced. In which case, your dad must have updated your immigration application to show you were married now and in a different preference class. And after you get the divorce, he could have changed it again. Right now, when the time comes to submit your paperwork to the consulate or to USCIS via your father, you will have a lot of explaining to do, or may be your father will. My suggestion would be to contact and immigration lawyer and get their advice before that time comes.