Even though it’s your wedding we’re talking about, you don’t want to put off or forget any important immigration deadlines.
Your K-1 fiancé visa is only valid for one entry to the United States. If you leave the U.S. on your K-1 visa, you will not be able to reenter.
In order to get a green card for family reasons, you and your fiancé will need to tie the knot and make it official. While you can get a fiancé visa prior to being married, you can only apply for a green card after your marriage.
Applying for and obtaining a fiancé, or K-1, visa is a multi-step process that can span many months. At each stage of the process, you will have to file paperwork with the government, and there are filing fees attached to each required form.
While the USCIS is more than willing to fulfill your request for a fiancé visa, you must first convince them that your relationship is legitimate.