TTC numero uno lol! (sp?)

30 yo, LMP: 26 April, ~ 5 days long, cycle between 30-31 days. I know for sure I ovulated but can’t remember the exact date, my husband and I baby danced twice around ovulation time. My app says I’m 2 days late. No symptoms of period or pregnancy, except for nausea. However I’m always nauseous. When is the absolute best time to test.. I don’t like to test early. I have exams and I don’t want to put myself thru anymore stress. I also notice that my midline is rapidly getting big, but that could be the ice coffees with sugar and cream I’m indulging in preparing for boards. 😘😘💕