Am I pregnant?

I had unprotected sex on the 6/01/19 and I took the morning after pill on 8/01/19 but the nurse said there’s still a chance I could get pregnant because I was ovulating. My period is due on the 22/01/19 and I’ve been really tired and really hungry and I’ve been having mood swings according to my mum and friends also I’ve been looking pale? I took a test and it came out negative but the doctor said it’s too early to take one? Is there a high chance that I might be pregnant?