normal ke ?

is it normal klu upt tu negative even period delay dh 6 hari? sbb sya buat upt pagi tadi n my urine mcm cair+negative result. delay period dh 6 hari. N sekadar brtya, how many should I do upt? Btw my period setiap bulan mmg tepat.. Setiap bulan at 17hb. Cuma bulan nih je delay smpai 6hari. Sya kawen bulan 8 haritu.. Before n after kawen still dtg 17hb. Cuma bulan nih je lewat.