So when they put their hands to their mouth and chew at this age its just a soothing mechanism
They are signs and it’s not too early, but more likely just a developmental milestone of them “finding their hands”. There’s a post abit further down with lots of people saying the same and some have started using teething toys to occupy xx
I’ve been wondering this exact same thing. My boy has been constantly chewing on his hand since about 8 weeks and dribbling loads. I can see his teeth are close to breaking through the gums at the top so I’m assuming it’s early teething!