last night my girlfriend and I were making out and long story short i ended up with my penis out and my hand in her pants. i took my hand out and grazed my penis and got some precum on my fingers, before entering again (in under a minute or so) i believe most or all of the precum was wiped off, but im very worried. i know you can get pregnant from precum and my finger was all the way in there, we're both 15 so this is stressful for us. i had jacked off the night before if that helps. she got off of her period the day before and peed right after all of this. what are the chances of her getting pregnant, we are both very stressed out and worried. anything helps, thanks