Eh, scan gender tu memang accurate lah kalau dah 18-20 weeks onwards, especially if baby cooperate and positioned dengan proper! A few of my mum friends dapat boy prediction then turned out girl, tapi mostly because baby shy hiding, bukan salah sonographer hehe. Confirm confirm balik with your doctor or ask for second scan if ada doubt, tapi usually dekat this stage dah boleh rely on it lah.