help!!!! newbie, period or Implantation bleeding

[hisangel517]

this is going to make me sound stupid but i need an outside opinion. alright, so, i started my period March 27th and ended the 1st. my fiance ejaculated in me almost every time we had sex this month, (10 or more times maybe?) and im supposed to start sometime between today the 25th, or the 27th. i took a HPT today and it came back negative, well i've been cramping a little and i went to use the restroom and noticed a speck of blood, and aprox. 3 hours later still nothing...soo..implantation or period? or am i just being stupid.