clotty breakthrough bleeding, chunky discharge (not thrush), head...

clotty breakthrough bleeding, chunky discharge (not thrush), headaches, nausea some months, slight weight gain, breast increase (at least there's one bonus), more recently I'm getting lots of cramps and low sex drive - who wouldn't have low sex drive with all of the above? I'm sure Yasmin is fine for some people, just not me. The trouble is, I've tried about 10 pills in 14 years, none of which suit me. All of them result in some or all of the above side effects. And I too, object to having to go through this in order to prevent pregnancy. However, when I stopped taking the pill, I scored myself the most delightful son in the world. But I'm not ready for another. What can I do?