The simple answer is its only 60/40 accurate.
We have been scanning since 2003 and have successfully gendered 90,000 plus babies at our studio in Bramcote, Nottingham.
Babies are only just fully formed at 14 weeks, so gendering at this gestation is unreliable.
We also specialise in gender reveal scans so if you want to keep it a surprise and pop a ballon or fire a canon we can accommodate this for you!