<prompt> Human: I got a new job offer and passed the background check, according to the HR recruiter. He asked me for the desired start date and that he would send me a welcome letter with all the information this conversation occurred on ThursdayIm still waiting on that letter but Im suppose to put in my two weeks today at my current job today, Im just nervous and I dont want to quit until I know Im set.Should I wait another day or two and then give notice ? Under two weeks or just out in my two weeks today?  <response>: If you havent heard anything since Thursday, call the recruiter and politely ask for it again. 