possibility?

had sex the 24th of june. my fertile window didn’t start until july 1st and i ovulated either the 4th or 5th ( different apps are telling me different things ) is there a possibility i could be pregnant? i’ve read so many things about how you can only get pregnant when you’re fertile, but i’ve had all these symptoms that don’t usually come before my period, which is supposed to be here on the 18th ( i know every period isn’t the same, but i usually only get 2 symptoms.. cramping the day of and my gums start to hurt) i’ve taken 5 tests that were all negative, but then i realized it was way too early.. is there a chance or am i just experiencing different period symptoms and a lot earlier than usual?