This can be prevented if most parents will pull their heads out and teach to not have sex before you are married, but I don't see anyone screeching about that.
With all due respect, the subject we were discussing is your refusal to make abortion illegal. Abstinence education, while important, is a needless attempt to shift the focus away from your original claim. You still haven't answered my question: why is it within government's purview to outlaw murder but not abortion?
The only one I see "screeching" here is you.