having a nervous break down

hey guys so i need some advice so i got a new job that required me to have a drug test i completely forgot i had smoked a dab (weed) pen but the pen didn’t actually make me high because i didn’t smoke it correctly i was stressing over this drug test so i took 2 home drug test and they both came out negative should i be worried that the lab drug test came out positive ? also i’m even more scared because the job is basically through my moms job so she would be notified if i failed the drug test. HELP!!!!