Just talked to my SIL and looks like I am going to the Bahamas!!! They moved the baptism to a few weeks later!!
And she informed me that they were never upset with me about it, considering I had no idea I was getting the trip. And they are agreeing to let me pay for the invitations reprint (which was difficult to get them to agree to)
So thanks everyone for giving me input, and keeping your fingers crossed for me!!