Think I'm pregnant😭

Courtney • 🌸
I always have scares and I don't know why because I always use a condom but me and my bf had sex like last week on Thursday protected and everything but my question is...is it possible for his cum to squeeze out the top of the top of the condom?? Because l felt nauseus like once but idk if that was because of the food I ate at lunch that day and I've been sleepy but that's usually me on a daily basis.