Wa'alaikum assalam sis! Pelvic pain macam ni memang common masa 33 minggu, hormones relax ligaments ko so semua area boleh sakit bila gerak, tapi memang kena careful je. Satu tip yang a few of us mums tried is bangun slowly, roll to your side dulu, pastu push up with your hands instead of sitting straight, really membantu! Perut mengeras tu likely Braxton Hicks, tapi since ni first time ko and the pain quite bad, better check with your doctor or midwife to be safe, especially kalau sakit sampai tak boleh jalan. They might suggest pelvic support belt or stretches yang suitable for you, don't struggle alone!