Am I pregnant even after i took an EC?

So, around the end of october me and my so had sex and he came a little in me. 2 hours later i took an emergency contraceptive. Im now 22 days late for my period and im extremely scared and idk what to do.. i took a pregnancy test today and a very light blue line showed up. Im really hoping i took the test wrong, and i plan on taking another one today. Any thoughts ? What should I do?  Im upset bc i dont even think the contraception worked