Hiya I have the same problem as you, go back to your Gp, I am about to try HRT no 3, as I have had break through bleeding so far with Femosten and Prempac C. The first I Took for six months, the Prempac only for three, as the breakthrough bleeding hasn't gone away my Gp said time for a rethink. I am going to start one called Angeliq, once I have finished the current pack of the Prempac. The Angeliq is supposed to stop the bleeding, so I wait and see .... With fingers crossed.... As my GP said there are lots and lots of options out there, sometimes it's just a case of trial and error until we find what suits us best. Good luck and I hope you find a solution soon xx