Is this teething?

My baby boy is turning 5 months in few days time and he's my firstborn, so was unsure if this(photo of his gum - the 2 white spots) is a sign of his teeth coming out soon? So far he has been showing sign of teething from what I know was excess drooling, extra fussiness and irritability, crying, loss appetite and having a slight fever. But not sure when his teeth is coming out. Is it soon? #firsttimemom #advicepls #firstbaby