Two vessel umbilical cord

Nicole
I had the anatomy ultrasound done and was told that my baby only has a two vessel umbilical cord and it could lead to heart problems, they told me not to worry so much. Her heart is prefect but I am extremely worried.. Has anyone had a baby with a two vessel umbilical cord? Is your baby okay? 
It seriously broke my heart when they told me, I couldn't stop crying, maybe I'm worrying too much but I just want the best for my baby :(