If you have a pending application for adjustment of status, you cannot leave the United States without having an Advance Parole document in your possession.If you did leave without Advance Parole, you will be considered to have abandoned your application and as an intending immigrant you would likely be refused entry under section 214(b) of the INA upon your return and have to restart the immigration process from outside the United States if it is possible in your circumstances. Any bars to admissibility due to any accumulated unlawful presence would trigger as well.As of today (Dec 7), the processing time for an I-765 EAD for adjustment of status applicants is taking 5u20136 months at the most per the USCIS Case Processing Times pages for the Service Centres that process these applications. As another answer mentioned, you could make an InfoPass appointment, which would take two weeks or so and vary based on the office you would be making your appointment at.In the end, you must weigh the urgency and reasons for your need to travel against the potential ramifications if you choose to travel without having secured Advance Parole. You may wish to discuss the situation with you family. Best of luck.