Hmm - that's strange then that the Contract for America contained no mention of the word abortion. Or even pro life, as I recall.
One would think that Newt's contract for America would contain abortion if indeed it was part of the Republican plank as you stated.
Here is a link to the 1996 Republican platform.
Since the Contract with America was part of the 1994 congressional elections what does it have to do with the Republican party platform?