Bleeding after sex?

So to give you guys all the information, my period ended yesterday afternoon, which was only on cd4. Very unusual for me. It usually finishes around day 6. And since today which is day 5, I didn’t have my period, my husband and I did the deed. Immediately after we finished he noticed blood on the condom and on him.. and I’ve been spotting ever since. I asked my mom and she said she thinks I’m pregnant.. what are your thoughts? Thank you in advanced.