I have chronic migraine and I'm getting married

30f - I'm so happy there's a place for this. I've had chronic migraine since I was 12. There's not always a reason it seems for why they come on, but starting my period and stress do seem to be a big factor. I'm getting married in November, and mostly everything for the wedding is done. At this point, I am just terrified that I will wake up, the morning of, with a migraine. I want to plan to take preventative actions and was hoping I could get some suggestions?

I currently take Aimovig once a month. Preventive or emergency pills either don't work, or they make my whole body "reset" if that makes sense and i basically need to lay down and sleep. Which obviously I won't be able to do before the ceremony.