"No" phase

Melissa

My son says no to everything now. Anything you ask him it's always no. So I starting telling him not asking him and its stil no no no. He is also very reluctant to listen to me when I tell him no. Most of the time he continues to do what he is doing after being pulled away and being told to stop. It's getting quite frustrating abc honestly not make our time together enjoyable because I'm so frustrated. Is this just a phase? Is this the start of the "terrible twos"? Anyone else experiencing? Looking for tips, advice anything! Thanks!