NY1 is right, you have to file a 129F petition. There is much more to be done than that. There are more documents you will need, and i know evryone is gung ho for the K-1, but trust me, the embassy is rejecting alot of these right now. yes they are fast IF you are approved. If not you may have a6 month wait for them to review your case. My advice? Get married in the DR. (the honeymoon will be nice anyway) and apply for a CR-1 visa. Your spouse will enter the US with a green card and a SS# and there will be no long drawn out adjustment of status process. If you really want good advice go to
www.visajourney.com and read, read read.
-Tim
Wedding pics at
www.twincactus.com