Trump was 100% pro-choice when he thought he would run as a Democrat.  He became pro-life when it became necessary to pander to the GOP base.  He notes no moment of conversion.  I suspect he does not care about the issue outside his own ambitions.  For anyone who was fooled, sorry.  Clinton's problem was in trying to rouse the pro-choice base, which was voting for her anyway, rather than attacking the usual con job.