Migranes and pregnancy

With DS my usual 8-15 holy crap shut off the lights and stuff lead in my ears so I can't hear a pin drop migraines stayed at bay. It was a blissful 9 months heartburn and vomiting aside just to not have a single migraine after that many a month for almost 10 years! Soon as he popped out they were back with a vengeance.. I am now 7 weeks and I had a migraine last night...CRAP!!!!!!!!!!! So it is possible that I may get unlucky and have them during this preg. Imitrex was my drug of choice and frankly the only one that worked! It is a category C drug for pregnancy meaning they don't know for humans but in animals TONS of problems. Do any of you that suffer from migraines have any suggestions or know of something to ask my doc for that is safe for pregnancy that actually worked on you? Im preparing for battle but I really hope that was a fluke migraine!

No advice, just sympathy because I've been there!!! I only got one migraine with a couple of my pg (usually get them 3-4 times a month) so there is hope.