Whats Going On With Me ???? Af Or Am I Pregnant ????

For Three Days Ive Been Having Blood On Toliet Paper When I Wipe Aleast Once A Day Yesterday I Just Knew My Cycle Was Coming Because Of The Spotting .I Woke Up The Next Morning And When I Pee It Was A Blood Cloth In The Toilet And I Havent Seen Any Blood When I Wipe Since I Took A pregnancy test 2 days Early It Was Negative. Idk If My Period Going To Start Or Am I Pregnant I Have No Cramps My Boobs Heavier But Dont Hurt And Im Sleeping alot and get very nauseated but no throw up Im Really Confused on Whats Going On HELLLLLLPPPPPPP My Next Check Up Is In 3 Weeks