Weak incompatibility

[MaryDB]

Hey everyone.  I went to do the initial blood work  to donate and after a very long two week wait  :)they called and said the crossmatch needed to be redone because there was weak incompatibility.  I guess I don't want to get my hopes up but I was wondering if anyone experienced this or knows what the likelihood of the next one being negative would be?  We are going back on July 17th for the new crossmatch to be done.  If it comes back positive I definitely want to go the paired exchange route but I still have hope we might be compatible.

Thanks in advance!