several weeks ago, i went to a park with some friends, we took off shoes and walked on the lawn. unfortunately, i stepped on a syringe and broke it (very likely from drug user). it hurts my foot a bit. i cleaned it up and saw some blood inside that thing. now i feel terrified that blood might have hiv. what is my risk? also, i am worried that small broken pieces went into my skin with hiv blood, would it stay active if i could not get them out? is it possible that virus carried by those pieces does not infect me now but stay active for a long time in my foot and infect me in the future when there is a chance? as i want to go for a test, so i need to know if i can trust that result in this scenario.