Chronic Migraines During Period.

I suffer from severe chronic migraines. I used to have them everyday for as long as I could remember, and oh, the pain worsened when I was 14 and finally became a woman but the pain in my head became unbearable. I am now 20 and  although I've found few medications that work, I'm still in so much pain around my menstrual cycle. Hormone imbalance the doctors say. Levels drop too dramatically... Yet why can't that be stopped? Has anyone ever been through this? Has anyone found a cure? My husband and I want to start a family within the next few years. I'm a full time student and have a full time job and I seem to handle it all well. But when I start to build my family, I don't want to be broken down for hours or days because of my head. They don't deserve that. I've been through so many doctors, a neurologist, and the only triggers I have are stress and hormones. Levels going up and down during my cycle which is btw heavy at times. I take Amitriptylin for preventive medicine and sumatriptan to abort or take away the migraine when it starts. And for my hormones, I'm on Trinessa birth control yet it all seems to work fine until my period starts and I become crippled. Nausea, I'll get sick three to five times in one day, blurred vision, lines seem to wiggle, lights are too bright, whispers sound like screaming, and even though I love food, the smell of anything especially meat is dangerous to my stomach and senses. I need help and answers. The doctors think and I believe of course that yes it is my hormones that are the main cause of my migraines but all they can do is prescribe me pills that work only half the time or not at all. If anyone has any insight as to what I could possibly do or look into, it would be greatly appreciated. My husband and I want to start a family soon but I'm afraid I won't be able to give them the attention they need when me as their mother and wife is crippled and bed ridden in the dark for a week or more out of every month.