Larger on Yasmin?

I'm into my 4th pill of Yasmin (I've never taken bcp before). And I'm just wondering when some of you women started seeing larger s. No, that's not what I bought it for, and yes I know it doesn't affect everyone the same way. But hypothetically, if my WERE to get bigger on the pill, when could I start seeing the change? So far the only symptoms I've had were headaches the first two days and then they were gone, and just light spotting today after my period. Just hoping for the bigger chest :-D And no weight gain *crosses fingers*