When is best to have a 4D scan???

Ashleigh • 18•06•10💕👫. 09•01•17💙👶🏼🙈. 09•01•15🙏🏼👼🏻💚
Hello people's☺️ just wondering when would be best to book a 4D scan so I can see my little mans facial features? I'm currently 17w3d I know it's to early atm to see his face clearly so was wonder how far any of you lady's was when having one done and would love to see pictures 💙💜