salam buat semua selamat pagi :)

Wa'alaikum assalam! Congratulations, mama! TCH tu singkatan untuk gestational sac yang nampak dalam scan, basically the pregnancy sac yang baru mula berkembang. Doktor tulis 3-4 weeks tu means pregnancy dating based on the size of the sac, so your bub is estimated around that age. Jangan worry kalau belum nampak baby's heartbeat yet, at 3-4 weeks, the sac baru visible je, details lagi tak boleh nampak clearly. Usually by 5-6 weeks baru you can see more, so just follow-up appointment with doktor ye, dia akan monitor progress and confirm everything okay! Excited sangat ni!