Eh, sayang, kena pergi jumpa doctor cepat-cepat ni, especially dengan warna hitam tu bila membuang. At 37 weeks tu dah boleh labour anytime, so better safe than sorry! A few of my mum friends pun ada stomach cramps dekat-dekat delivery, tapi the dark colour thing tu bukan normal, bisa sign of something yang kena check. Jangan delay, pergi clinic or hospital terus okay? They'll check proper and put your mind at ease. Hang in there, mama, you're so close na!