Can you get pregnant just by 30 second sex?

You can get pregnant as soon as a "naked" penis enters your vagina.sometimes a small amount of sperm comes out before the guy ejaculates completely.It only takes one small sperm to get you poregnant. THOUGH your chances are ALOT lower than if you had sex until the guy ejaculated completely,cause then,you'd be sure that a real amount of sperm entered you.You also have to considerate the date that you had sex.Youre more lickely to get pregnant if you had sex the 14th day of your cycle(that's when youre supposed to ovulate.)if you had sex around 3 days before your ovulation,the amount of sperm that PROBABLY entered you from the 30 secong sex you had,could survive in you until you ovulate.the sperm can live inside of you for a few days,but the ovule dies within 24 hours .