Wa'alaikumassalam! Eh biasanya around 18-20 weeks la boleh tengok gender baby dengan ultrasound, tapi depends jugak kat baby position and sonographer lah, kadang baby shy A few of us tried pergi private clinic around 16-17 weeks dah bisa tahu tapi official scan is usually at the 20-week anatomy scan, so that's the best time to be sure!