Ttc For 1.2yrs

Hye.. Anyone penah tak ada pengalaman mcm i.. Sepatutnya period i 30hb.. Tp 23hb hr tu klr darah mcm ni ?.. Utk hari ke 2 n 3 tu klr coklet2.. 3 hr I rsa cramp on n off mcm nk period.. Im not sure ni period or spotting.. Pg td I check upt but sadly - ve.. Sorry klo ada yg geli.. Doakan i..