Bizzare experience with contact lens

Having paid for PGSS insurance, I decided to get something out of it. The natural first step would be contact lenses, as I don't have contacts yet. The buying was pretty smooth, even though I had to front the cash and get reimbursed. After I got home, the contacts turned out alright. I've only had hard contact lenses before, and never got used to them enough to wear them daily. The soft contact lenses are much easier on my eye, although they're quite difficult to put on for someone inexperienced like me.

Having put two on, I suddenly found that my right eye was blurry. Thinking that I lost it, I sighed for the cost, and opened another lens and put it on. Two hours later, the contacts were that comfortable, so I took them off before having dinner. Putting my glasses back on, I went on with my things. A while later, I suddenly found that my right eye couldn't see well. Somehow, there's a contact in my eye! I took that off, look at all three of them, now lying in lens boxes. The only conclusion I could make, was that I had two contact lenses in my right eye.

A brief Google search didn't return anything. That's it for now. Hope the contacts work out well for me.