Am i pregnant?

so i had sex but it was protected. he pulled out before he came and his condom was fitted and didn’t slip. idk why i think i’m pregnant but i have super bad anxiety and when i first did it i got scared and my anxiety was so bad to where i was convinced i was pregnant cause whenever i get anxiety i feel nauseous. so all that did was scare me even more. it’s been 4 months now and i haven’t had any symptoms like swollen feet, cravings, etc. but i have had stomach spasms but other then actual moving in my stomach nah. but last month i watched a show on TLC called “I didn’t know i was pregnant” and this girl didn’t experience any symptoms. so that kicked my anxiety up again. and i can’t stop thinking about how i feel like i’m pregnant. ik. stupid. but its true. i spoke to his mom and dad and they both said that i wasn’t. they were convinced that i wasn’t. and his dad said i had issues if i believed tlc. i feel better but i just need some more reassurance. i’ve been feeling pretty hungry lately like i ate 20 minutes ago but my stomach feels empty. my period has been a bit irregular ever since my first time. it’s usually been a day or 2 off. but i heard that having sex can change your period. they wanted to prove me wrong so they told me to take a pregnancy test from dollar tree or something. but what are your thoughts?