I need a answer very quickly. I was virgin. By this I mean this was my first time. I didn't use a condom while having sex. We were playing and my penis was watering. I wiped it but then I started to have sex. After five thrusts I was done, but I am 100 percent sure that I withdrew. However, I am scared that she might get pregnant. It's not yet clear that she is pregnant, but what is the possibility there will be a pregnancy? I need this answer as it is urgent, please.
When couples regularly have sex during the course of a year, there is an 85% chance that the woman will be pregnant by the end of the year. Another way to look at it is that in each month of having sex, there is a 1 out of 5 chance that the woman will end up pregnant. It could happen the first time. It could take over a year to happen. It is like rolling dice for a particular combination. You never know when the combination will appear.
Your pre-ejaculate fluid that you were dripping could contain sperm. Not a whole lot, but it only takes one sperm being in the right place to cause a pregnancy. You then delivered that fluid deep into her vagina when you put your penis into her. This increases the odds because it shortens the distance. Finally, you are certain you pulled your penis out of her before you started ejaculating, but this doesn't mean you did not drip some semen in advance.
For pregnancy to occur one of your sperm, which can survive up to six days in her, has to be present when she releases an egg. That egg release occurs two weeks before the start of her next period. If she has her next period, then you did not get her pregnant.
Still, all this is worry about the consequence -- wanting to hide from the fact that you sinned. You have been involved in a number of sins. Fornication was just the end result of your prior sins. See: How much sexual stuff is too much? If you didn't want a chance of becoming a father, you should not get involved in sex. I'm more concerned that you have put your soul in jeopardy for a moment of fun.