Spotting dark brown/pinkish pregnant or not?

Salam sis. Samalah situasi dengan saya. Irregular period. Dah spotting almost 2 weeks. Check UPT 3 hari lepas, samar-samar double line. Semalam terang double line. Pegi clinic, scan, awal lagi doc kata. Tak nampak apa apa. Pagi ni check, double line but samar and lambat keluar. 2nd opinion check klinik lain, doc kata early pregnancy. Scan tak nampak apa jugak. UPT klinik pun buat, samar-samar results. Kena pegi balik 2-3 weeks check. Tapi spotting almost 2 weeks dah. Risau 😩