How many days should I wait until I take a pregnancy test ?

Hi I'm 28 and TTC, my period is alway on time and i was suppose to get in on Monday. I have sore Brest and a little cramps but not how I usually get them and I not continue like I would have a little for like a minute and then they stop. I don't want to get my hopes up but I'm incredible anctius !! Should I wait a  couple of more days ? Help me please