Sorry, but you're wrong on that score too. When you were alive in the womb (pre-Roe v Wade) the law prevented your mom from terminating you. It was your mom's choice to get pregnant.
You are certainly the one who is sorry.
Abortion might have been illegal, but it was still available on the black market. The government did not "prevent" her from having an abortion, it discouraged her with threats of criminal punishment (which probably weren't enforced all that often anyways).
By your logic, the government "prevents" teenagers from getting drunk--but at least tens of thousands of teenagers are probably drunk in America at any given time.
The law is not the ultimate prevention - it only makes the consequences of a chosen act more severe. Does the speed limit prevent you from going as fast as you think you can get away with? If it does, you are in a small minority.
The speed laws are there to regulate traffic towards safety. The laws that would try to regulate what choice a woman makes about a process taking place within her body are motivated by a particular segment of religious belief - not appropriate for a free society.