Molisa, I definitely won't tell you TO try naturally, or to NOT try naturally, but I wanted to mention that unbalanced chromosome translocations very rarely result in pregnancy, and if they do they most definitely end in a miscarriage. It's because when it's unbalanced there is actually genetic information missing that is essential for life. For that reason if I were in your position I would probably try anyway, unless you were only planning on transferring embryos that are not even carriers of the balanced translocation (which it sounds like they can't distinguish for you yet).

As for your concern about whether to even go ahead with it considering the limitations of the test, well I'm assuming the main reason that IVF with PGD is used in a situation like yours would be to reduce the number of potential miscarriages (or months where you don't even seem to conceive) because you are more likely to create embryos that have chromosomal abnormalities.