See here for a thorough analysis of the parameters of this Mitzvah: https://asktherav.com/i-am-teaching-a-high-school-class-about-the-mitzva-of-pru-urvu-what-is-the-mitzvah-mdoiraisa-and-what-is-the-mitzva-mderabanan/#.XcvxTrulXq8.link This link in itself deals with the basic premise in your question. In addition…
