Bleeding After C-section

Ashley • Married in 2009. Started TTC for #1 September 2014. BFP in Jan '16 after first round of Clomid. Baby Finn is due September 25!
My c-section was 1 week ago today. I haven't had any vaginal bleeding for 3 days. Today I've had painful uterine cramping and began spotting again with bright red blood. Is this normal?