Oh yeah one last thing, you need to update yourself on this theory, but thats what im here for
Scientists have already abandoned this theory 10-15 years ago due to recent scientific research, which show that it is impossible for such an "oscillating" universe idea to come into being. The laws of physics offer no reason why a contracting universe should explode again after collapsing into a single point, it ought to stay just as it is. Nor do they offer a reason why an expanding universe should ever begin to contract in the first place.
Like i've said above, even if we allow that there is some mechanism by which this cycle of contraction-explosion-expansion does take place, the crucial point is that this cycle cannot go on for ever, as is claimed. Calculations for this model show that each universe will transfer an amount of entropy to its successor. In other words, the amount of useful energy available becomes less each time and every "opening" universe will open more slowly and have a larger diameter. This will cause a much smaller universe to form the next time around and so on, eventually petering out into nothing. Even if "open and close" universes can exist, they cannot endure for eternity.
"This theory is nothing but a feeble attempt to accommodate the fact of the Big Bang to notions about an infinite universe. Put briefly, the "oscillating" universe model is a hopeless fantasy whose physical reality is impossible." William Lane Craig