Am I pregnant? HELP ASAP

So the last time I had sex was June 4th, we even checked the condom (the only form of birth control we use) & everything was fine. I have not had my period yet (I do have irregular periods though). On a different app, it says that I am 5 days late but here it says I am 9 days. I have been stressing out about it all week but have not been showing any pregnancy symptoms except my period being late. I have been going through my normal PMS though & im just really not sure.