Actually, yes, you can, and the process is straightforward. All you need to do is send the request to the U.S. Embassy to “revalidate” your I-129F.
If you prove that you are actively working on it, the U.S. Embassy may decide to extend your case, and you will be given 4-month increments. If you wonder how you can send such a request, all you should do is email them, schedule an interview, submit a visa fee, etc.
On the other side, if you notify the U.S. Embassy that you intend to get married very soon, you can be given a maximum of 12 months.
If you are approaching the deadline and are unsure about how to try to extend it, you can contact us, and together we can take the necessary steps to ensure that you will not lose this big chance to start your life with the loved one in the United States.