I just Beat The GMAT!

I took the GMAT for the first time today after preparing a ton for a few weeks using the official GMAT review book, online tests and this extremely helpful site. I was so nervous I puked right before the test. So gross. Anyways I thought I did poorly and to my surprise I got an acceptable 720 (Q48, V40). Now I know this is my unofficial score and my question has probably been answered numerous times here but how does the AWA essay scores affect my Unofficial score? I thought I wrote decent essays.