You've heard a lot about Hobby Lobby. The other company is Conestoga Wood, owned my Mennonites. The ACA mandate includes a long list of contraceptives, 3 of which are abortifacients, which the owners of both companies object to, but they have no problem with the others (as a Catholic group might). They believe that providing drugs that can prevent embryos from implanting in the womb would make their companies complicit in a form of abortion. Obama has already exempted non-profits from this mandate, and of course has personally changed the law over 20 times to suit his Democrat supporters and those running for office this fall. Freedom of religion for Obama means your religion stops at the church door. He’s confused it with freedom of worship.
More than you’ll ever want to know about implantation. http://en.wikipedia.org/wiki/Implantation_(human_embryo)