Could I be pregnant

Jasmine • Wife | college student | daycare teacher | TTC for 2 years and half
I was late on my period like 2 weeks late, it was a short period and I took a pregnancy came out negative. And I get nauseous when I eat certain foods, I'm sleepy all the time. I haven't done a blood test yet & I know that I'm not sick. And I know you can still be pregnant and get your period. So any advice? Or thoughts.