OK SO TODAY IS JUNE 29th ND STILL NO PERIOD.... I HAVE SEX ND IM NOT ON BIRTH CONTROL .... CAN I…

OK SO TODAY IS JUNE 29th ND STILL NO PERIOD.... I HAVE SEX ND IM NOT ON BIRTH CONTROL .... CAN I TAKE A PREGNANCY TEST OR IS IT STILL TOO EARLY I FEEL SICK TOO MY STOMACH ND THROWING UP...YALL PLEASE HELP ME OUT