N started teething at 3.5 months. Now at 5.5 months, he already has four teeth! The two upper teeth have emerged now, cut through the gums few days ago. We were surprised to see his first tooth just after Chinese New Year in Feb since he was barely 4 months old, but mum said I had my first tooth before my 4th month too. Luckily N doesn't wake in middle of night the way M did when he was teething. He just drools a lot, chews his fingers and stuffs his fists into his mouth which is extremely adorable to watch.. Hopefully he will stay this way.
M started teething at 6th month, but his teeth came out real quick in succession thereafter. By the time he was 11 month old, he had 8 teeth already! If I remember correctly, his last molar cut through before he was 20 months old.