Marginal Cord insertion...?

Cailey

So I had my anatomy scan yesterday at 20 weeks 2 days. Everything was fine but was told I had to have another scan at 32 weeks. I looked at my mychart once I got the results and everything was normal but it says I have a marginal cord insertion. I’ve never heard of it and the doctor didn’t even tell me that’s what it was (he was the high risk dr and I have a regular on appointment today to go over the scan). I’m guess I’ll find out more today. Any insights?