In place of the Apostle's Creed in the beginning is the longer Nicene Creed. The Rosary doesn't officially start until the Pater Noster of the first Glorious Mystery.

From: https://www.youtube.com/watch?v=Muo1NNKUK80

There are precisely 15 mysteries of the actual Rosary, and there will always be precisely 15 mysteries of the actual Rosary, no matter what anyone--especially an antipope--says to the contrary. Related, see: 

The Twenty Mysteries of the Rosary?
https://www.seattlecatholic.com/article_20021108_The_Twenty_Mysteries_of_the_Rosary.html

The Rosary -- All 15 Mysteries -- Gregorian Chant

Jeremiah Alphonsus