In a word. No. No chance of pregnancy if it was this easy to get someone pregnant we wouldn’t be messing around with IVF treatment. We would just simply be passing around “TV controllers”.
Sorry if I came across mean. I just want you to stop with any what if etc etc. no pregnancy risk at all.
To get pregnant, sperm needs to get into the vagina and travel up to meet the egg to fertilize it. This won't happen without actual sex, or a process like IVF.
By the time sperm is exposed to air, the wet hankies, time, water, etc., nothing would have survived on your hand to transfer to anything.