Well of course it is my business! 

 As a member of this society, I am partially responsible when its laws permit one person to kill another.  Either an execution, 'self-defense', defense of another,  infanticide or abortion. 

As far as 'women's bodies' are concerned numerous laws prohibit women from doing things with their own bodies.   

Tanning beds, tattooing , prostitution, injection of dangerous drugs; all of those are prohibited at certain ages and for certain reasons based on societal decisions that no one is a law unto themselves, even if they happen to be female.