 [ Symptoms ] could my baby be teething at 11 weeks old [ Disease ] most babies start drooling a lot and sticking their hands in their mouths between 2 and 4 months although on average teeth do not actually break through the surface until 6 to 8 months the extra drool can be a sign that the salivary glands are getting ready for an expanded diet of solids also even though teeth may not come through right away they may be moving up and causing some discomfort teeth sometimes do come very early as early as 4 weeks of age so you may in fact have an early teether 