I am 8 weeks postpartum, and my husband had been pulling out since 4 weeks and now this past week I just got my period but was only for 2 days and it was really light it was only about half of a pad the first day and the second it was only when I wiped, I am concerned that I might be pregnant

Ask your doctor at your postpartum exam. Have you had one yet? I'm not sure what your question here is but every time you have sex, there is a possibility of pregnancy.