Hey Hun, while I never used AP (but have hears terrific things!) I used Vitex for about 3 cycles, which extended my LP to 14 days instead of 12, but did nothing for my cycles. It also made me very grumpy, so beware! TCM in general I have heard great things about as well, with regulating hormones and fixing cycle lengths. Good luck and I can't wait to hear how you go!!