PREGNANCY TEST IN THE TRASH...OH THATS NOT GOOD!!!

Yeah so I was going threw the trash to sort recycling and came across a prego test. OH NO!!I know I SAY I want to be a grandmother but not right now to my son who is only 18!! oh god I had this dream that his girlfriend got pregnant and then ended up in jail and I had to raise the baby, this was long before seeing the test in the trash. it did show negative...but I hope its really negative. OH GOD what next??!!!!!!