Vvvfl pg test but ended up with a like period

So I had a vvvfl the 14 then later that night had spotting like a period but not my normal period I was bleeding on and off light pink to a bit red ro rustty rusty brown and they were on and off not full day bleedings I bled on and off for 4 days minding that they were not full day bleeding my periods are usually heavy heavy flow for 7 days or more I felt a ball inside like pressure by the end of my c section scar now I feel that pressure on and off! Last night I had stinging like pains all over my belly what could this be ! ( i did call a doc and they want to see me till 7 of December )