I had this sensation with my first pregnancy so I'm taking it as a sign I'm currently pregnant - no other symptoms (yet!). How common is this symptom? If you make sure everything is quiet and sit upright in a sturdy chair (you can't feel this lying down), do you feel it also? Feels like a faint cell phone vibration; I notice the rhythm is with my pulse so it is constant, which makes sense for the body to increase blood flow to the uterus upon learning of a pregnancy. Doctors are unaware of this early symptom. Informal survey here - how many of you feel/have felt this?