Pregnancy...?

This is one of the most terrifying days ever. My period is late by 5 days (I’m never irregular). I have this weird feeling I’m pregnant but I could just be in my head. I’m young still in high school (not going to disclose my age due to some rude comments I’ve seen on other girls posts like these) I’m just super nervous that I’m pregnant. I’m taking a pregnancy test in the morning, my boyfriend knows that I’m late and he is stressed out so am I. I needed somewhere to vent and advice on how to cool my nerves. Any symptoms I should look out for that are common?

Update: not pregnant thank you for all the advice, not the response I was expecting 💕