Pregnant with Tension Headache only Excedrine Helps

I have a really bad headache. I'm supposed to start getting ready for work soon. I can't go to work with a headache, I would get more nauseous. What normally helps is Excedrine with Mountain Dew. But I'm not going to take that since it could hurt the baby. I'm 2 months along. 1st prenatal visit is on Wednesday. Help!!!