QuestionI had sex with my girl many times but never left sperm inside her vagina. Whenever it's almost at the end I'll take out my penis out and spill it outside. Can having sex like this cause pregnancy?
I feel so sorry for the girl you are using for your own pleasure. No commitment. No true love. Just two animal rutting.
Yes, she is taking the risk of becoming pregnant. I can name off the top of my head three cases of people I know personal to whom this has happened. One occurred on the very first time. One on the second time. The third happened after two years of "being careful."
When you get sexually aroused, you begin dripping pre-ejaculate (precum in slang). About the same time, the material for ejaculation begins to mix in the ejaculatory duct -- semen from the seminal vesicles, sperm from the vas defernes, and chemicals from the prostate all combine in preparation for ejaculation. In addition, the pathway to your bladder closes and the pathway to the ejaculatory duct opens -- much like a railroad switching tracks.
At this point it is possible for the mixed semen to drip down from the ejaculatory duct and into the urthrea. The pre-ejaculate then picks it up and pushes it out the penis. Since you have your penis in this girl, it is possible for you to leave some sperm in her with actually ejaculating in her. All it takes is for one sperm to reach an egg at the right time for her to become pregnant.
People have measured the odds. If a hundred married couples regularly had sex, at the end of one year 85 of them would be expecting a child. If a hundred couples practiced the withdrawal method that you are attempting to use, 19 of them would be expecting a child at the end of one year.
Instead of treating this girl as an object for your sexual release, why not treat her with respect and love? Show her true love by committing your life to her, then you can have sex without worries or sin.
"Marriage is honorable among all, and the bed undefiled; but fornicators and adulterers God will judge" (Hebrews 13:4).