How many weeks can I do details scan and gender scan?

depends on clinic tu mommy..mcm klinik yg sy buat details scan tu, diorg terima dr 20w-24w je..lebih dr 24w, diorg tak terima..sbb bacaannya tak accurate bila bby dah besar..kalo ada rezeki, boleh nmpk gender bby skali 😊

I did at 19 weeks. The accuracy at 18-24weeks is 90%, and it will reduce as the baby grows bigger