in the past few days, i have been fatigued, i have had excess discharge (thick white, and clear stretchy) there is no odor and it doesnt itch. today, i experienced lower back aches but it eased up when i sat down. i am on the birth control alesse, but last month the only thing i had that was close to a period was light spotting which was only noticable the one time i wiped. I took a pregnancy test more than a week ago and it came up negative, but i am suppose to start anyday now. could i be pregnant, or am i overreacting