Missing a drug test am I goin to jail?

I’m on juvenile probation and I have been passin all my test and hadn’t been called in a min and I forgot to call one day and apparently they called me and my po told me to come to his office but I’ve passed erry test and I been on it like 7 months and this is a first time missing and it was an honest mistake I’m clean am I goin to jail or what?