I would do a 3d/4d ultrasound that's the best way at about 15 to 18 weeks along I had one done and it was the best experience I have had when finding out what my baby was
Genetics at 10 wks 5days and 6 days later at 11wks 4days a baby girl were naming Miracle Grayce
I had a 3d before I think imma pay again i found out at 17 weeks with my son