The flow of sperm into the uterus is usually not felt. Because the sperm is very small, there are about 15 million sperm in each milliliter of male semen, the semen flows into the female vagina, there will be a feeling of liquid outflow.
Sperm with semen discharge into the vagina, semen liquefaction, the vagina will have liquid outflow, this will be felt, but which the sperm is very small, to reach the uterus most people do not feel.
Sperm through the cervical canal into the uterine cavity and the fallopian tube cavity, the head will release some enzymes, so that the sperm to obtain energy, energy after the sperm to combine with the egg into a fertilized egg. Since both the sperm and the egg are in a cellular state, women generally do not feel these processes.