Can i take a pregnancy test?? Or would it be to early? baby #2 maybe..?

Okay, So ive missed my period for June. My last period was on May the 20th, and ive had all kinds of pregnancy symptoms. One is peeing a whole LOT!! but by me peeing so much will it mess up my test results because it wont be first morning pee? and i eat and drink would this throw it off?