I had considered it, though. It seems less likely to be the case. I never said it's not, only that it's less likely. The reason is because mass/energy simply would not just hang out in the form of a hyper-compressed space all on it's own. It would instantly begin expanding from internal pressure alone. Granting, the BBT involveds a small area which composes all of the area of the universe. Either that small space was being forced to remain a small space and then the thing holding it together stopped working, or something changed which then caused spacial expansion. There's nothing to suggest that the laws of physics suddenly changed. Also, granted, the BBT explains only from the moment of expansion on, but if we were to suggest that time was functioning/was an extisting thing prior to this expansion, we would then have to figure out why things suddenly changed, and then we would simply be left pushing the first moment of time backwards. No matter what, there was a first moment of time. If we place that first moment at expansion, we just explained expansion. pushing time backwards has no explanatory power, and in fact creates problems.
Again, it could be the case, but it doesn't seem to be, especially considering the fact that considering space and time an interlocking mechanic has solved many problems with physics, both quantum and large-scale. If time and space are inter-related, as it seems to be, then there would be no time without space, and there would be no time in the theoretical singularity of the universe prior to the BB, thus making "prior to the universe" a potentially (not necessarily) oxymoronic concept.