Umbilical cord only 1 vein and 1 artery instead of 3 all together

Vanessa

So have just come back from my 12 week scan and they told me that they could only see 1 vein and 1 artery instead of 3 all together. He was very vague and said may result in smaller baby and will need more scans than usual.

I have been on Dr google and just confused an scared myself.

Just wondering if anyone else has experienced this.

Thank you