lo/ovral vs. yasmin

I'm about to switch birth control from Yasmin to to Lo-Ovral. I love Yasmin and orginally got on it b/c i heard it increases breast size, which it did a cup size....but my new doctor doesnt have it so they prescribed me Lo-ovral which is a different type of progesterone i think.  How is the norgestrel different from the drsp, and will my breasts loose the fullness from Yasmin or will it work similarly? And what would be the most comperable birth control to take if I can't get Yas/Yasmin??? 

thanks so much