Went to 32 week appointment

Clarissa • Happily married mother of two one five year old son and pregnant with another little boy living my life like it's golden I'm loving every moment with my family 😄♥♥♥♥ love is everything.
Hey ladies so I went to my 32 week appointment and my ObGyn said the baby was measuring big and when I come back in two weeks if he gotten bigger she'll have to send me for another sonogram.. Well I was wondering if she do decide to send me for another sonogram because of my baby getting bigger what happens next? Anyone ever went through this before?