Eh kantung leper tu normal je at 6 weeks, don't worry! At that stage biasanya just a tiny gestational sac kita boleh nampak dalam ultrasound, ada moms dalam circle saya yang worried gak at first thinking it's too small, but the doc assured them it grows really fast. Since this is early pregnancy, best la you check with your gynae to confirm everything is progressing okay and dating is accurate, sebab every pregnancy is different kan. How are you feeling otherwise?