Hmm, pregnancy tests memang boleh confusing, especially kalau hasil tak consistent macam ni. Based on what you shared, garis C lebih terang, then one line only, then two lines again but T pudar, this definitely sounds like something kena discuss dengan doctor or a proper clinic, sebab results yang inconsistent macam ni bukan standard dan kena confirm dengan blood test or ultrasound je yang betul boleh determine if your wife is pregnant. Pregnancy tests pun boleh affected by timing of test (morning urine is best), dilution level, atau even test yang dah expired, so better get a proper checkup to rule out semua possibilities dan get proper answers rather than guessing from home tests, lah.