Mama, this really needs a doctor check-up kasi ang postpartum bleeding ay iba-iba sa bawat mama, lalo na kung may stitches ka, mas mabuting sure ka with your OB directly, okay?
From what I know, heavy bleeding after a few days or on and off within the first weeks can still be normal postpartum, pero puwede ring may ibang dahilan, kaya don't guess, go see your doctor. A few of us moms had spotting or bleeding ulit after ilang araw, pero ang timeline and amount talaga matters dito. As for baby-making after, that's something your doctor can explain best based sa your situation, pero it's definitely not zero risk, so better ask them din! Take care, mama!