Hi! I am 14-weeks pregnant and my doctor (private clinic)recommends an ultrasound every 4 weeks during the second trimester (basically that is at every prenatal care visit). So far I am enjoying a healthy pregnancy w no medical concerns at all. I have heard other helath care providers (private) schedule an ultrasound only every 6 weeks, and in the public system, it seems like they don't schedule an ultrasound at each prenatal care visit. Thoughts? is it really that necessary to have so many ultrasounds (every 4 weeks)? what are your experiences like? Thanx!