I have a 4 month old baby and I'm breast feeding. I just got my period back on August 9th and it lasted 7 days. Yesterday it ended. I had sex with my husband and he came in me. Now I'm spotting a little bit, must be some blood left over. What are my chances of becoming pregnant ?

Edit*

I know it's possible to get pregnant while breast feeding. But is it possible to get pregnant the day after your period. Online it says it's unlikely but has anyone gotten pregnant right after their period?