those symptoms could also be period symptoms. i know pregnancy and period symptoms can be alot alike. the first way to tell is if you have a missed period. i would go more from that than the other symptoms. then take a pregnancy test if you miss your period. since you said you ended your period the 5th, im assuming (if youre a 28 day cycle) that you would actually be getting your period soon anyways. so i would wait for your missed period if you have one at all to determine if youre pregnant.