hay emma, im roughly 19weeks and this is my 2nd pregnancy. I have been getting really bad headaches too this time around i spoke to my OB and he said i could use lavender oil on my temples and also i could take the odd panadol, as these are both ok while pregnant. I am very anti taking panadol while pregnant but there has been a few times i have had too. and also keep up your water intake, my OB said. its hard but hang in there. luv TG