Hi My Name Is Bianca. I Was Curious On A

Hi my name is Bianca. I was curious on a doctors opinion. I was due for my period on October 22. And so far I have wiped and had light pink blood but like spotting. Iv had a two boys already and for neither of those pregnancy I never spotted. I just had my second son in July and I still breastfeed . yes I have had unprotected sex but my husband has pulled out .so we both know the possibility . my question is.does it sound like something is going on that's not good or could I be pregnant ?