The difference is multi-level.
Pregnant girls can get an
abortion.
Pregnant girls can give up their
baby for
adoption.
Pregnant girls can keep their
baby and actually be
happy.
You can't abort an
STD
No one is going to adopt your
STD
You sure as
hell can't live happily with an STD
So there you go. It's worse than a
pregnancy scare.
Better watch it in the
future.