I keep reading all these things about miscarriage and ultrasounds gone wrong, and it's scaring me so much. My first pregnancy gave me healthy dd. She's now 2, and we are expecting again. I'll be 7 weeks this weekend. I haven't yet had a sonogram, so I'm not sure if it's a little off 7 weeks. My scan is in 2 weeks, and I'm starting to get very scared that something is wrong, and that we will find out then. What are the chances??