Ever since this morning, I've been having a little blood in my saliva from my throat. Now my throat is a little sore in the front. Should I be concerned? I'm a non smoker.

It is a gum disease. Blood in saliva can be a sign that you are at risk for, or already have, gum disease. This is a serious problem, which should be checked by a dentist. The good news is that this condition is curable. Call your dentist today!
Needs explanation. blood from any orifice requires explanation! Careful ENT evaluation should be performed. Are you bruising easily, any bleeding from other sites?