Aduh, memang confusing situation ni! Dari apa yg cik describe, double line (walau kabur) tu memang bisa indicate pregnancy, tapi brown bleeding lepas tu boleh jadi implantation bleeding or hormone fluctuation, honestly sama-sama bisa happen awal pregnancy. Demam pun normal kalau pregnant, but lepas tu period-like bleeding tu make things unclear, so kesian you're stuck in limbo. Best move la check dengan doctor, terangkan exactly apa yg happened, sebab they can do blood test untuk hCG level which akan confirm clear-clear whether pregnant or just hormonal disruption. Mum friends aku pun ada yang experience spotting awal pregnancy tapi ada jugak yang salah test, so don't stress, doctor will sort it out for sure!