Dont take it no need ur not pregnant
No, the sperm would be very much dead by then. When sperm dry out that's it, dead and done. No need for a high dose of hormones like plan b.
If he had sperm on his fingers and inserted those fingers in your vagina then yes, take the morning after pill.
If he didn't have sperm on his fingers then you have nothing to worry about. Good luck.
No you cannot become pregnant this way so don't take the morning after pill.