I dont' think this would be a good method. This is like the rhythm method, right? Where you look at when you have your periods so you can abstain on your most fertile days? It's not really a good enough birth control to begin with, much less when your cycle is so unpredictable.
There are plenty of birth control options that aren't BCP or herbal things (I've never heard of herbal birth control anyway?). Have you thought about condoms, a diaphragm, an IUD, spermacide, the sponge, female condom, the ring, etc?
__________________ Previously on Met, currently on Ortho Tri-Cyclen, Spiro, and cinnamon |