I thought the same thing. There have been rumors and spoilers of this for a while, maybe that's why Mimi still hasn't told Rex about the abortion, because in the end she is still pregnant!! wonder if she will just play it out or actually tell him what really happened?? omg I hope it's true! finally a story that will make me come back, as I have stopped watching, and I am only a spoiler/early edtioner. lol. If that makes sense.
I read on another board someone was speculating that because of the abortion, she got an infection and may have damaged her ability to have children in the future.