Severe headaches

Katie • Have been trying for our 2nd baby since November. Now 4 weeks pregnant as of 3/7/15.
So it's a Saturday and of course I will have to wait until Monday to call my OB but I was wondering if anyone has any suggestions. I have told my OB and other doctors that I have been getting pretty strong headaches almost daily but they still seem to think everything is fine. The thing is, sometimes these headaches reach migraine level pain and Tylenol does nothing whatsoever to help. The heaches make my nausea worse and then of course make it very difficult to eat. They're also making it hard to focus at work and basically just my everyday life. Any other suggestions?