Am I pregnant please help need to no?

so on monday had sex and he cumed in me 3 times and den on wenesday cumed in me 1 time now it's friday and I'm hungrey..tired all the time...stomach hurts..cramping and back pain and peeing alot after I drink somthing..but I stop tacking the depo shot 6 months ago..PLEASE HELP ME I'm VERY YOUNG AND I CNT TELL NO ONE