I know this question has probably been asked and answered before, but I guess I'm just looking for reassurance. Here's the story: A week ago, I bought a sex toy at an adult novelty story. I took it home and, without thinking, used it without washing it first and without a condom. It only made contact with my penis. No one else used it. Still, after use, I became obsessed with the fear that someone might have used it before I bought it and I might have caught something from it, HIV at worst or some other STD. It certainly looked new, although the box was not shrink-wrapped (none of the boxes of this product were), and the store, of course, says they don't take returns on sex toys. I seriously doubt the employees are using the merchandise and putting it back out, though I guess anything is possible. And that's what concerns me.
I keep telling myself that even on the one-in-a-million chance someone did use it and they were infected with something, it's unlikely the virus (especially HIV) would have survived until I used it. Hopefully, that's true. Anything to be concerned about? Should I be tested?