3-D/4-D ultrasound

Melissa β€’ My husband and I were blessed on November 19 2015 with our son Nolan! Currently pregnant with baby #2 πŸ‘¨β€πŸ‘©β€πŸ‘§β€πŸ‘¦
I just scheduled our 3-D/4-D ultrasound for next Saturday! I am going to be 30 weeks. Is this a good time to go, or is he already to big to get good pictures? Has anyone else gotten one done or will you get one done? So excited to see our son!! πŸ’™πŸ’™πŸ’™