How long ago was it when you passed your test?
Generally it takes between 2 to 7 days for your call sign to be issued, but this depends on how the VE team file the paperwork. If the electronically file it's usually just a couple of days when the call is issued. Some VE teams still mail the paperwork in to the FCC which delays the process.
If it's been more than 7 days since you passed your test, I would contact the VE team to get an update and see if they've filed the paperwork for the test session.
I always like to mention in threads like this to be patient
As an old timer like me would say "Back in my day" we had to wait 3 months for the paper license to come in the mail before we could get on the air. You think waiting a few days is hard, try waiting months!
By the way, congrats on passing your Tech test and welcome to the hobby!