Can u get pregnant from using toilet paper in a public restroom like if someone who had semen on their hands touched the toilet paper that i wiped w/?

No: The odds of that scenario are extremely unlikely. Once semen has dried the sperm are not viable, meaning that the sperm cannot cause pregnancy. I hope this helps.

NO!!!!: You should write sci-fi novels. Picture it : alien from planet Zorbia crashes saucer in construction site next to porta-john; it looks like a fertility capsule from home;uses it to deposit alien semen into the sacred white bowl; wipes tentacles with toilet paper; homeless woman uses it later; gives birth 45 minutes later to what she thinks is an octopus;discusses with therapist at shelter, etc etc