help -

ok i posted about this but i thought i would post this problem hear maybe someone can help me.

ok, i'm 8wk pp and no period. i bled for a week after having my son. i got my tube tie. and me and dh have been veryVERY"active" 3wk after mt c-section(TMI but i wasn't bleeding or discharging so i decied to start early). well of course were using no protect but to tube being tied. but i just read thatu can get pregnat if you a) start to early having sex and the tube are no fully close or B)they untie . i start spot a week ago and then nothing should i be worry? the last time i every spoted i was pregnant. What are the odd?