2 vessel umbilical cord???

Okay I needs opinions and people with experience in this situation. I'm a ball of nerves. I had my 20 week scan this past Monday and got a call yesterday to come back in next week cause it looks like the baby only has a two vessel cord instead of three. I've read that she'd need to be monitored more and that she's at a higher risk of heart and kidney problems, growth problems and that she could just die. I'm trying to be positive. I'm extremely scared for my little girl though.