Yes, it is normal. The sperm goes in, the semen comes out. She can lift her hips (stick a pillow underneath) after you ejaculate to keep it inside for about 10 minutes linger

ohhk so it wouldnt take all of it to make her fall preg?

What you ejaculate, is a lot of fluid called semen. The semen contains sperm (many millions) but it is so small that you do not see it with your eyes. When the semen comes inside her vagina, it becomes more watery so that the sperm can get out. The sperm can swim and gets into the cervix and uterus leaving the other fluids behind. The watery semen comes back out. There is even a term for it - flow-back, and it is the cause of the infamous wet spot. This flow-back is not just your fluid but also contains cervical mucus and her arousal fluid.

so can u wipe afterwards and the sperm will still get "up there"?

Yes