i put my tip inside my girlfriend, not even for 5 seconds. i know my anatomy well and it takes about 10 minutes for me to ejaculate fully, so i had my tip in her for roughly 5-10 seconds, not even making any motion it was pretty much just for pleasure so i was stationary, then after 10 seconds i took my tip out and we had dry sex and i ejaculated on her shirt, what are the chances of her being pregnant? im very worried and in my opinion she cant get pregnant because we did this a few months ago and she didnt get it.