Growth restriction?

What happens if there’s a growth restriction? I’m 30 weeks and have a large fibroid. There’s been no issues with it at all. But my doctor said it’s bigger than the baby’s head at this point but they’ll have to keep an eye on it it make sure there’s no growth restriction caused by it.

What would happen if the fibroid did cause a growth restriction? I know the baby might not be able to grow as big, but what else? What would they do? Deliver early? Keep the baby in there and just know she’ll be smaller? Idk, anyone ever deal with a growth restriction for their baby?

I know they wouldn’t remove the fibroid because my doctor said after I’m done having babies is when they could remove it.