Sakit bawah perut macam senggugut tu quite normal at 33 weeks, banyak mummies experience Braxton Hicks contractions ni, tapi memang better ko check dengan doctor just to be safe especially since it's your first, they can examine you properly dan make sure semuanya okay, jangan worry! A few of my mum friends had the same thing and it turned out fine, tapi setiap pregnancy lain, so definitely jangan hesitate nak call your gynae or go to the clinic kalau rasa tak comfortable or sakit dia makin teruk.