I know this is faint lines, but......

I used my last hpt on Monday & am currently awaiting on a delivery of some I ordered (were supposed to come yesterday)? Anyway, my AF was due yesterday.....still no show? I've had really (TMI) creamy CM since late last week, plus really bad mood swings (unlike me), uncomfortable heavy-feeling breasts & tender nipples, but still feel like AF is lurking ready to pounce?! On Monday (13dpo) I had some really bad shooting pains in my uterine area for about 4 hours then they disappeared & now just been having twinges/aches around that area & my back? I just happened to glance in the mirror as I was getting ready for my bath & my right nipple seems to be really dark, just that one......weird?! Do you think it should test or just wait for AF to show?