Coukd this be implantation bleeding or what??

Hi everyone well let me get to the point wednesday morning i notice a little bleeding when i would wipe kinda pinkish and later in the afternoon out of no where i felt a gash and i was bleeding more but all wednday not bright red but kinda dark red and i didnt bleed enough to fill one pad also no clots at all and i just had my period the 2nd of october till the 7th so this is kinda not normal for me could this be implantation bleeding or what could it be?? Help. Thanks everyone.