I'm 4dpo today too, and also so excited for Saturday. It's silly though, I'm trying not to get my hopes up, but I think that's impossible with it being the first time! I've got some ICs that I plan to use, and also FRER. I've also ordered a couple of digis, but I don't plan to use them until I've seen something else on one of the others.
Sore nipples still (which could just be from ovulation), and also sore back and headachey - but I get headaches quite regularly so can't really use that one hehe!