Help!

Angie • Married have a daughter who was born on 12/12/12, now pregnant with baby #2!! :D
Hey all.. I am 5 1/2 weeks pregnant and I am already having a hard time sleeping! Waking up every hr and having a hard time falling back to sleep!! It's been like this for the pass 4-5 days now.. Anything suggestions would be great 
Thanks :)