No, I doubt that would work. Not for a migraine. It sucks when you can't take 'real' medicine! Did you look into maxalon? I know, I know, you're thinking what for, but a paramedic assured me that they always give it when someone calls an ambulance for a migraine. In combination with something else, but he told me it was evidence based. You never know. Anything to take the edge off. But I'm not sure if it's preggo safe.

Are you allowed to visit an acupuncturist? Costly, but maybe worth a shot.