Most Helpful Girl
It could be one page if a longer report (where the case and company names are).
Personally I would count yourself as lucky and get far away from this women and her ex. At the least she cheated on you and it's likely that she is manipulating you in one way or another.
If you really need to know (and feel she is lying) in most states you can request a member of the court to witness a new test (they take swabs in front of a notary) the result is sent to the court rather than either you or her so it can be fabricated.
I'm sorry your in this position, I'm sure it seems like a disappointing outcome either way. If it really isn't your kid that leaves you to move on to a better women and maybe really get started on your own family (without ex's involved).