The sperm immediately begin swimming and some will find their way into the cervix. The sperm then begin their long journey towards the egg. Leaving the cervix they enter the womb. Here, they swim towards the Fallopian tubes. read more
Fertilization: Sperm Penetrates Egg It takes about 24 hours for a sperm cell to fertilize an egg. When the sperm penetrates the egg, the surface of the egg changes so that no other sperm can enter. read more
The egg travels down the fallopian tube, pushed by tiny hairs and awaits the arrival or sperm. About a teaspoon worth of semen enters the vagina containing roughly 300 million sperm, less than 100,000 will pass into the cervix to begin their 6-inch journey to the egg. read more
It can take about 45 minutes to 12 hours for a sperm to reach the Fallopian tubes and meet the egg. The fastest sperm are, however, able to reach the egg within 30 minutes approximately, depending on the quality of the sperm. read more