Eh sayang, at 29 weeks memang boleh rasa sakit2 kat perut area sebab uterus dah besar dan baby kicking more, tapi kalau sakit teruk especially waktu malam and kau frequent sangat buang air, best lah you check dengan doctor, bukan nak takut2kan but setiap pregnancy lain, and soalnya ni quite common yet boleh ada reasons lain yang need checking. One of my mum friends rasa similar kat third pregnancy dia and doctor just reassured her plus gave some tips untuk tidur better, so hopefully yours juga just pregnancy things je but takde salah confirm dengan GP, okay?