I had this problem severe my last pregnancy everyday for my last trimester and didn't stop till 6weeks after birth, im 27weeks and starting to get it again..I wouldn't take any meds cuz they cant guarantee it doesn't have an effect they told me..I pretty much suffer through it, unfortunately ):
Look into a chiropractor... Especially if it feels like its coming from your neck. Your neck and even shoulder blades being out of whack can cause severe headaches.
I had the same issue. I took Tylenol on some days and drank a small coffee on other days... it helped so much
Tylenol or coffee worked for me!