Consistent horrible headache

I've been having a horrible pregnancy. And a lot of issues random pains just blah. I woke up around 5am with a HORRIBLE headache. Was able to fall back asleep for a little but when I woke up for the day it's just been booming allllll day. I tried a tylenol, a tool a nap at work, ate fruit, different foods, drank a crap load of water, even caffeine... NOTHING HELPs!!!! 
Idk what else to do, any advise ???