brown black period?


my periods are very regular 30 day cycle. i was suppose to start the 21st i wiped and had a tint tan brown but i didnt get anything til the 23rd i wore a pad and it was so light i only had a sliver of brown blood on it. today the 24th im wiping but still nothing like my period. usually on the 2nd day of my period its pouring red blood like a crime screne. is this normal? should i be expecting red blood soon or will this period jus be dark and light..?