I would assume that you would be able to transfer carrier embryos if that was your choice. In your situation, if I only had carrier embryos available I would probably use them because I figure if our science is this fantastic in this day and age that we can test for these things and avoid having affected babies, then who knows how far things may have progressed by the time your carrier child decides to have children

Best of luck with everything! I thought the IVF/PGD process was going to be really scary and daunting (and for some it is), but I found it much easier than I expected it to be.