Should I test?

I’m 11dpo and have been crazy symptoms that hopefully I’m not making up in my head just because I want a BFP! I’ve had constipation, back aches, boobs hurt, and I feel somewhat nauseous in the morning. AF is supposed to arrive on 12/20 - should I test now, or wait till after Thursday? I’m too excited and now feel like I have it in my head that I am because of my symptoms- so I really am dreading getting a BFN! Any one else feel like this at the beginning?