This, same thing, happened about 2,000 years ago. It was called "The Immaculate Conception"!!! It really caused a big stir that goes on to this day - it was in all the papers. But seriousely - - - -
If a female cannibis plant grows to maturity, with no exposure to pollen, there is no pollenization. Therefore, no seeds - that's what sensemilla is all about! Since you only got two seeds, my guess is that a couple of horny pollen grains found thier way in there and had thier way with your female plant - if that's the case - the seeds should be "normal" (50% / 50%, male/female).
On the other hand, if your plant was a "Borderline Hermie", the seeds will most probably be unviable, or else just produce more hermies.