I just want to know a few symptoms

Sooo me and my ex had unprotected sex 3 times 2 of thoes times he didn't pull out and I was also fertile. I think once he told me my body tried to give me false hope of being pregnant, But I've had a few different pains...been peeing more...and I've just been cautious about not hurting my stomach or putting extra pressure just in case it's there....we had sex the 21st period isn't supposed to start until the 8th I'm scared😔😭😭somebody help me please☹️