After you file I-485 in US, you need to apply for Avanced parole (AP) (file I-131 to get it together with I-485 filing) to travel and reenter US using AP.
After you file I-485 in US, you need to apply for Avanced parole (AP) (file I-131 to get it together with I-485 filing) to travel and reenter US using AP.