pregnant after giving birth

okay i still havent gone to my 6 week check up but i should be going tomorrow. although its been 8 weeks now... but i had an easy birth, i didnt need any stitches or anything, was able to walk 30 mins after and i stopped bleeding at 3 weeks. well we had sex at 3 weeks once and once again at 4 weeks he did not ejaculate in me neither times. and at mid 5-6 week im sure i was oj my period but 7 weeks we had sex again and we had sex multiple times all week and im not sure why he says it but i think atleast twice hes told me "i think i did a little right before i pulled out" BUT usually id feel some come out and i didnt at these times so i dont believe he did. just today i got like light red/pink spotting and very egg white like CM sorry for tmi but stupidly no protection was used and i am breast feeding. could i be pregnant. i know i could find out tomorrow but i just want opinions and thoughts