our Immigration explains that applications for a U Visa can take years to process and in that time the family dynamic may change.  If you have gotten married since submitting your U Visa application you may be able to add your spouse to your pending application.  The U Visa applicant can add their spouse at any time to their application.  But timing is important.  If the applicant gets married after the U Visa is approved they can add the new spouse to the U Visa by using form I-929.  But, you will also have to prove that if the application was not granted they would suffer extreme hardship in their absence.  This process is a bit more complicated.