Can a female get pregnant if she whipes herself with toilet paper that might of had a little bit of sperm on it?

Doubtful: It depends on how long the sperm had been on the toilet paper. Sperm is not capable of surviving outside of a warm environment for long. It's very doubtful that you could become pregnant just by wiping with a sperm stained toilet paper. Talk to your doctor if you're concerned about pregnancy.

Unlikely: As sperm will not survive out side the body on dry surface.