We are a military family and are having our first child in May. We only get two ultrasounds because of the fact it is very unhealthy and can cause harm to a unborn baby if you do more. I've seen people do 5 or 6 ultrasounds. I didn't know this till I talked to my dr. And have looked on multiple sites saying it is true. I haven't had my first one yet but just wanted to share some helpful info...