I went to the medical 2 days ago to get the blood checked.And a boy had come before me to get the hiv test done.And that boy had left his cotton in the table.When the doctor got my blood out, then the doctor put the same cotton on me with a mistake.The injection was new. But the cotton of the same boy was placed on me.And a little blood was visible on that cotton, I am very afraid,If that boy has a hiv then can I also have a hiv?