Can you be pregnant even if you had your period? i had my period but i'm having pregnancy symptoms

Unlikely: It's unlikely you're pregnant if you had a period. Now, if you had a light amount of bleeding (spotting), then it is possible. You're best off getting an at home pregnancy test to know for sure.

Implantation: Implantation bleeding can sometimes happen around the time you would expect a period, so yes. A pregnancy test should be positive by this time, so doing one should answer your question.