i need help

so yea my dude recently told me he ain’t pull out , i ain’t got my period yet & it’s been 13 days already i took one pregnancy test yesterday, negative, but i been feeling definitely abnormal , for instance , i can’t sleep !! & when i do i wake up around the same time in chills but sweating almost. when i’m hungry, i try to eat but i can never seem to find what i can actually bring to my mouth and eat , so i’m hungry & wanna eat & have stomach pains sometimes from not eating but whenever i eat sum small or just drink like a smoothie i throw it up . help desperately, need advice