Driving while pregnant

Ever since I found out I was pregnant I find it so hard to stay awake while driving , like as if imma just pass out on the wheel. It isnt the kind of tired when you get no sleep for a day this is worse than that my eyes wanna shut and fall asleep .ive tried doing all the things you guys losted nothing works. If i take a nap i feel even more tired when i wake up. Any1 else have this problem what can I do to stay awake its very scary driving like this!!!!??!!!