Alhamdulillah, congrats! Honestly, 3 minggu pregnant boleh naik flight, tapi better check with your doctor first sebab setiap pregnancy lain-lain dan doctor kamu tahu medical history kamu better. A few of my mum friends flew in early pregnancy without issues, tapi ada jugak yang doctor advise tunggu first trimester stable dulu, especially kalau flight tu long-haul or kena frequent toilet stops sebab morning sickness. Best kak, just book an appointment dengan doctor and ask, they can advise based on your health and where you're flying to!