WITH HIM IN NEED OF HELP

Okay so I was at his house and then he started spooning me and humping me like really hard. He had jizzed in his pants and I also gave him a handj. After i gave him a handj his mom came home and so i had to go to the bathroom and my underwear was really wet and so i decided to wipe off the white stuff on my underwear but then i forgot i gave him a handjob my hand was covered in sperm but it dried up and touched my underwear with his cum. So idk if im gonna get pregnant im really scared help me!!!!!