After ejaculation in the same room, do not pull out with the penis to block the semen, is to increase the chances of pregnancy to a certain extent, but the difference with the chances of pregnancy without blocking is not particularly large. The process of pregnancy is simple: both men and women sperm and egg maturation; male semen intake into the female vagina; sperm movement to reach the fallopian tube and egg combination to form a fertilized egg; fertilized egg back to the uterus to bed. Therefore, the likelihood of pregnancy after internal ejaculation, even if the semen is not blocked, will not be very different from that of a blocked one. If you want to get pregnant, it is recommended to relax and have intercourse around the time of ovulation for a higher chance of pregnancy.