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i had sex on all my fertile days and kept my hips on a pillow for over 30 mins.. and i was suppose to start my pepriod the 31 of this month and i started 6 days early.. and i know all about the implantion bleading.. but can implantational bleeding fool you as if it was a regular period.. because mine is like a regular period.. and my periods usually are regular and are alwasy on time so and i have been throwing up in the mornings alot and getting sick through out the day.. and i have been having cramping alot like i am about to start but i just quit bleading.. so does anyone think i could still be preg???? the bleeding was more brown and pink than red.. it would be heavy for a feww minutes then it would be really light.. i had amaybey 2 or three days of heavy not too heavy bleeding and then maybey three days of brown and pink spotting.. and my periods are usually exacty 5 days!!! please give me some advice!! could i be pregnant?