Headache Help!

Julia
Hi Ladies! 
I'm just over nine weeks pregnant and I work as a teacher. Before being pregnant I drank Pepsi every day (I don't drink coffee) and normally took an excedrin or two to calm my headaches or on bad days my migraines. Since being pregnant I haven't had any Pepsi or anything to help with my headaches but I am like dying today. I thought taking Motrin was safe but it's a category C drug and I was told that anything past category B is off limits. Any help or suggestions are greatly appreciated!