Question!

I'm 13 weeks 6 days and this is my first pregnancy. I was at work this morning and broke out into a cold sweat and started feeling really funny. I ended up falling because i passed out and couldn't get to a seat in time. I wasn't out long and im not hurt, just a scrape on my arm. I drank a coke and sat down and it hasn't happened again and i feel ok, just a slight headache. I called my doctor but there closed. Should i get checked out at er or wait and see my doctor on Monday? Thanks for any advice!!!