"Today, only abortions performed in non-medical environments present significant risks of morbidity and mortality; with proper medical supervision, abortions are safe and simple procedures. In keeping with modern medical practice, this Court would reinforce the purpose of early abortion legislation if it invalidated the statute. This would permit abortions to be done by licensed physicians in adequate medical facilities and discourage abortions by unskilled practitioners. Moreover, it would preserve the 117-year-old purpose of the law, and the common law."