I've done a lot of research on headaches, and migraine. For most women, headaches do seem to be reduced in pregnancy-particularly after the 1st trimester. For others, the increased levels of progesterone and estrogen only increase headaches...it seems for those of us who are prone to hormonal migraine (the type I seem to get most frequently) that our bodies either respond like..."ahhhh..steadiness", or they respond the same way they do when they are triggered at a place in our cycle-like ovulation or impending menstruation.
When I was a teen, our family was open to medications...something my family and I are not now. I had Dr's try me on most things available at that time. Imitrex, narcotics, birth control pills to regulate hormones, and keeping a food log.
What I have learned since then, is that there is nothing more I can do besides being healthy, and eating healthy to prevent mine. Mine are a response to hormones. They can be debilitating if not treated. Fortunately, I have found something that works for me and so I use it when needed. I take Fioricet-tylenol, butalbital (mild sedative and vasodilator) and caffeine. I feel the best with this medication when needed, because each of it's ingredients have been used in pregnancy with no reported side effects. Last pregnancy, I had some intense migraines in the 3rd trimester...I'm praying I don't have them so badly this time.
Sorry for the book, but I wanted to say that you aren't alone. For someone who doesn't routinely visit Dr's, use Rx's or really take over the counters, it's a big deal to resign myself to a drug-let alone in pg or bf'ing! However, my OB, midwife and my DO have all told me that it's better to take when necessary, than to endure the blood pressure and blood flow issues of a migraine.
I hope they get better for all of you..and that is definitely a possibility! If not, I hope you find a way to treat them that can live with! They are not easy, particularly when you aren't triggered by anything within your control!