I had unprotected sex 3 days ago and woke up with lower abdoninal pain but its not really pain its just uncomfortable and I'm feeling sick. Am I pregnant?

No one can tell you that over the internet, wait and see if you get your period and if not then take a test, if it comes out negative and still no period then go for a blood test at your doctors.

If you had intercourse only 3 days ago you wouldn't be pregnant quite yet.