HELP PLEASE!!!!!

I'm 17 weeks pregnant. I have had an ongoing headache/migraine the last 2 freaking days!!!! I've tried extra strength Tylenol, cold rags, hot showers, hot baths, icy hot, caffeine, sleeping, staying hydrated, Advil, imitrex, dark rooms, silence, nothing has helped. It literally won't go away & I can't sleep because of it! I can barely hear out of my ears and my entire head is pounding! PLEASE HELP!!!