Never been late... going on day 3 of being late

Me and my boyfriend have been having unprotected sex, but we would always do foreplay and he would always pull out. I was supposed to get my period yesterday morning, as always. And I've never been late a day in my life. I took a preggo test, and nothing showed up. I waited 10 minutes before I took the pic. And today, nothing has showed up. Suggestions? Help? Anything is appreciated!