ADVICE PLEASE!! When should I take a pregnancy test?

I am 3 days away from my period (I am supposed to start on Wednesday). 
The only thing abnormal so far is that I'm not spotting (I normally spot 3-4 days prior to my period) and I'm peeing a little more than normal (nothing too drastically different) and my CF is sticky and creamy (it normally dries up before my period). I feel like I should have more symptoms--but I've never been pregnant so I'm kinda clueless haha
Should I take a pregnancy test?  If so, should I take it tomorrow morning (2 days before my missed period) or should I wait to see if I miss my period?