i had my period feb 2-4th, my cycles are pretty regular. i had unprotected sex the 10th , and the 12th, 4 days prior to my ovulation. ive been doing a lot of research and it says implantation bleeding can range in color from dark red to brown. anyway, yesterday the 27th mid-day i wiped and have blood diluted with cm. keep in mind my periods never start like this, my first and 2nd day are continuously heavy like i need a maxy pad changed 3 -4 times a day, the discharge that came out yesterday was light kind of bright red, by night time it started to turn dark red, but was only when i wiped. through the night i didnt bleed to where i needed to change my pad, it was just spots very light.. i dont know weather this is implantation bleeding or what.. my period isnt suppose to be until the next 3-7 days.. am i pregnant? ive been trying to conceive