Eh normal je tu bab 10 weeks, yang heaviness tu usually sebab uterus expanding dan ligaments stretching, lagi-lagi kalau first pregnancy memang rasa lebih obvious. A few of my mum friends said sama, especially kalau berjalan lama or berdiri lama, terus rasa macam pulling sensation kat perut area. Tapi kalau terasa sakit yang sharp atau bleeding, atau rasa something tak betul, better check with your doc just to be safe, better peace of mind kan, especially first time! Minum plenty of water, rest when you can, and try maternity support belts if kembung terasa really uncomfortable