12 days late today

I had unprotected sex a month ago last had my period the end of November I have noticed changes in my appetite I'm always hungry no morning sickness sometimes smells bother me and I randomly threw up after eating my favorite meal my mom made me 😫 is there a chance I could be pregnant ? I took a pregnancy test last week and it was negative and I currently still have no period and according to my eve app my period is 12 days late and 7% chance high of pregnancy