About pregnancy. Times what should i do?

Last month my period got delayyed by 2days and it last also only for 2days in these two days period ok forst day i have very dark red (almost black) color. Blood that is also not two much and on second day it ends in the afternoon only so basicly my period had last only for 24hr I have done  my blood test to check whether i m  pregnant or not  after 8days of my period bt it was negative my. Urin test is also negative not now today is 12th day of my period bt i m feeling  very strange symptoms like i feel. Hungry bt when i. Eat any thing it felt like vomit i feel dizziness a lot now days Perfume which used to be my  favorite now i just cant  handle their smell , always felt sleepy, white discharge is also there some times What should i do?