I hadn't discovered mumsnet when I was pregnant
Anyway at my 20 week scan I was told I had a 2 cord vessel, and shoved straight out and told to talk to my midwife and I would have to come back for a 34 week growth scan.
Apart from the hospital dealing with it badly nadnot explaining it, I had real trouble finding positive stories about 2 cord vessels but only very negative ones about heart and kidney conditions etc..
Anyway my daughter was born 6months ago and is happy and healthy, I hope if anyone else has a 2 cord vessel, this gives some reassurance.