need a opinion

Chandele
So projected period May 23rd and haven't got it yet, my period cycle length is either 30-32 days. I ate some peaches this morning & was fine around lunch time started feeling nauseous & my friend got me a sandwich from dunkin and thinking about the sandwich made me feel more nauseous. Nausea is in an out. Took a pregnancy test came back negative. I have no signs of my period coming on