I cheated on my wife during third trimester. It was random but i did it twice. Its eating me up! Keeping mum seems like my best option...any thoughts?

Look, getting married, having a baby, having responsibilities are scary things, and your way of dealing with it is definitely uncalled for. You've wrecked your life, and worse, your wife's and child's, into the bargain. Drop your game and your own silly romanticising about yourself, and get on with helping to look after your wife and the baby.