Thanks for your question; your question is important for both you and our other visitors. First of all you should be clear in your mind of what you are asking for. If you have had an unprotected sex recently and you are unsure about its probabilities in the near future then you can visit a doctor or a specialist as soon as possible if you don’t want to get pregnant in future you should go for legal contraceptives but with a legal prescription only from a qualified doctor. The signs of getting pregnant are like irregular periods and late occurrence of them with a very little discharge of blood. The sperms can survive for almost five days in the vagina and if you are not ready for any pregnancy like thing you should get a urine test done if few days have passed after the sexual intercourse. The porn stars are not on pregnancy pills at all, this is because the porn stars are quite an experienced lot who knows when to stop and when to continue. They have their ejaculation timings and they continue the intercourse till that very moment only and stop doing it when the penis is about to ejaculate. This is why there is no chance of any pregnancy thing taking place in the porn stars cases. If you think that you are comfortable with pregnancy then you can allow natural things to take place or if you have decided against it then you can take the help of a doctor to avoid it. You should understand that contraceptives are good option for it but it should taken only after enquiring its pros and cons. Good luck for the rest of your life.