I need advice!!

Hi, please help! My period is four days late and I’m freaking out. I’m hoping this weekend I get it but if not I’m literally going to be sick to my stomach. I don’t know what to do. My boobs and aerolas hurt like crazy, but I’m scared to take a test. I don’t even know if I can take a test, would it be too early? Im scared shitless someone please give some advice!!!