Kurang faham soalan. Lepas beberapa hari tu sis check urine guna upt strip yg baru ke? Atau sis tengok balik result upt yg lama?
Any upt, bacaan valid 10-15 minit shj. Selepas drpd tu invalid, boleh refer instructions. Second line yg timbul tu biasanya evap line.
Utk lebih confident, sis try guna upt dip&tell / clearblue. Lebih accurate sebab both upt ni very sensitive. Sehari sebelum due period pun dah boleh detect hcg/double line especially if period sis regular. But still kalau upt -ve tp sis masih belum dtg period, check shj 3 hari sekali guna upt strip pun boleh. So far upt mcm tu tak pernah scam saya. Kalau pregnant, lama2 mesti akan naik double line within 15 mins sebab preggy mommies hcg level akan semakin meningkat di awal trimester
sissy