When sperm meets egg, the start of life is not quiet. Under a special microscope, researchers have watched a tiny light show at fertilization. They see a microscopic flash at fertilization, a burst of ...

When you’re having trouble getting pregnant, going to a fertility clinic can be an overwhelming experience. Besides being stressful in its own right, fertility treatment comes with a whole vocabulary ...

Human animals have a simple, direct system: copulation and sperm delivery may lead to fertilization of an egg, if the timing is right. Once a sperm joins an egg, the resulting zygote gets implanted on ...

Fertilization In this stage the oocytes and sperms are mixed and left alone for fertilization to occur, in a special medium. The method of fertilization used depends on the sperm used. Provided normal ...

Understanding the timing of ovulation in relation to your menstrual cycle is key to gauging the likelihood of pregnancy. Sperm can survive up to 5 days in the uterus, so pregnancy is most likely when ...