How to relieve migraine

ka

I’m currently at work (I’m a preschool teacher and have 14 three year olds) and have a major migraine. I’ve had it since 7am. I took Tylenol this morning and then again after lunch but I’m getting absolutely NO relief. Idk what else to do. Any tips? I’m 27 weeks and read head aches can start around this time but this is pure torture