I have had a headache going on 18 hours now, usually i can sleep it off, but i woke up with the same headache from last night. It doesnt feel like a normal headache, there is alot of pressure in my head like its going to explode, it hurts near the front of my head in the temple area, and is uncomfortable. I am pregnant as well, could this be connected to pregnancy or is it something i need to go to the hospital for?