Marginal cord insertion

Haley

Found out at my 20 week I have marginal cord insertion,. They like cord to be in at 2.5 cm and mine is 1.8 which isn’t too far off but baby is only in 6th percentile. Told me not to worry baby might not have hit a growth spurt yet… anyone else have a small baby at this gestation and then all of a sudden grew???