The only reason I am telling you this is because you sound a lot like me when I started out on bcp's - I had perfect skin, no pimples except now and again before my period but nothing serious, and when I started BCP's (Yasmin) I got a terrible outbreak in month 2-3 and stopped. After a few months it went back to normal so I decided to try it again and got on Orthocyclen - same thing. Went from that to Nuvaring, and now I have given up on them and am still getting over all the scars the hormones gave me.
I'm using a diaphram and condom.
I don't want to scare you, because I know a ton of women LOVE yaz for skin, so maybe this is just an initial outbreak? When I brok eout, I knew it was the bc because it was always in the same spot, right around my mouth/chin and when I saw my gyno she said that was hormonal acne most liekly brought on by the pill.
Let us know how it goes and good luck!