Need some advice pleae? Pregnancy?

Hello everyone! So, I got my period on June 11th and it lasted its normal days. I did have sex during my period and he did go inside me. We also had sex aroung the 20th and we used the pull out method. Now I did not stop bleeding when i had sex during my period and last night we had sex and he did go in me and this morning i woke up bleeding, its not heavy but it slightly more than spotting, its also reddish brown and is mucusy. Any ideas about this could be?