At my 18 weeks sonogram I was told that my baby has?

At my 18 weeks sonogram I was told that my baby has an Uncoiled or Straight umbilical cord (instead of twisted like a twizzler the vessels are straight), the Doctor couldn't really tell me much because it only happens in 4% of pregnancies. I went home and immediately googled it and now I am terrified. There's alot of cases about losing babies at 30-35 weeks gestation and Trisomy disorders etc. I was wondering has anyone been told their babies cord was like this? and if so what was the outcome of your pregnancy and is your baby healthy? I'm quite scared about the unknown in this one ;(