Should I take a test?

I'm trying not to get my hopes up too much! Af is due next Monday. The last 3 to 4 days I have felt nauseous, my nipples have been insanely sore and I have an achy back. None of these are symptoms I typically get before af. I have a target brand early detection test but don't want to take it too soon and end up disappointed! What do you all think? Take it or wait?