question: i m 8 weeks pregnant and my symptoms (nausea and extreme fatigue) have just disappeared over the past two days. i did have an early ultrasound last week and they said they found a heartbeat but i m a mother of 4 so i m pretty experienced with the way the whole pregnancy thing works and these symptoms don t usually clear up till closer to 12 weeks. i m usually not this neurotic, but i did have a miscarriage in may so...should i be worried?