Could I be pregnant???

the week before easter I was on my period from April 14-19 on the 20th my boyfriend and I had sex without a condom. He did nut in me. We had sex again the next day same thing. I have tons of <a href="">period tracker</a> and <a href="">pregnancy apps</a>. On one of the apps it says my period should start on the 20th, but thats a week late then usually. Should I wait till the 20th to see if i get my period? Could i be pregnant? Im scared to take a test because. Honestly I really want it to be positive and if its not I’m going to be disappointed soo I’m really trying not to get my hopes up. My breast haven’t been sore the only sign that i have really noticed is that i feel nausea.