Lochia bleeding

I had my baby 9 days ago after i had him i had pretty big clots the size of my hand and bigger i bleed more after delivery than what i did during i stayed for 6 hours after the birth and got discharged when i got home i passed a big clot as big as my hand i didnt call l&d as i figured it would be fine as long as i didnt pass another one which i didn't.. my bleeding went to light pink spotting at 2 days post partum.. at 6 days post partum my bleeding went bright red and got heavier (not filling a pad) and its still the same today i had a few cramps the last few days and some small stringy clots ... Should i be worried at all? I haven't done anything different