I doubt very much that you can get admitted to med school with a 2.66.Med school admissions is concerned with your overall GPA as well as your GPA in the required courses (basic sciences). You need high marks in both areas, as well as for the MCATS, just to make it past the first round of consideration at any med school.
Nurses don't get any special consideration in med school admissions. Some do well; others, because they think they know it all, will not be admitted.
The Caribbean is even more expensive. If you're not a good student, you won't magically become one in the Caribbean. Further, you will have untold difficulties securing a residency in the US.
Take it one step at a time. If you can get into a BSN program, pursue that. Hopefully, a different program at a different school will improve your overall profile.
Patti Charron, Medical school admissions, SFA
Source: Quora Digest