Reassurance? Help!

Last night I was admitted to hospital with reduced feral movements. They kept me for monitoring and did an ultrasound. Everything looks perfect he’s “on the bigger side of average” but looks perfect except one thing : marginal cord insertion. Now I was back at hospital today for blood tests and am going back to the dr on Tuesday but I am really worried, everything I’ve googled is just making me worry more, have any of you guys had a marginal cord insertion what was different did baby come out okay did you deliver okay did it change to the more dangerous cord placement did you need a c section. I will ask these to my dr on Tuesday but just want some reassurance in the meantime of anyone else’s experience. Thank you girls in advance xx