scared to test - need advice 😢

Hello beautiful people, I'm nervous I could be pregnant, but am too nervous to test. I've been under a great deal of stress recently and feel like I could just be paranoid, but I'm three days late and feel like soon, I'll have to rip the bandaid and just take a pregnancy test. Advice for getting over this anxiety? Also: my sisters wedding is this Saturday. Not sure if I should wait until after the wedding, or just get it over with and test now. Any advice/ shared experiences / resources are greatly appreciate 💛