Lek, science not having all the answers doens't justify poor philosophy and just making stuff up. Your belief that something outside of the universe must have caused it to exist is based on the cause and effect principle, which is based upon observation within and is dependent upon space-time. Your extrapolation that the principle must apply when space and time do not exist in order to justify a belief in a supernatural cause is illogical and unjustified.
Even if the open windows of science at first make us shiver after the cozy indoor warmth of traditional humanizing myths, in the end the fresh air brings vigor, and the great spaces have a splendor of their own - Bertrand Russell