Ovulation is a phase in the menstrual cycle. It occurs at about day 14 of a day menstrual cycle. However, during days 10 to 14, only one of the developing follicles forms a fully mature egg.
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When a sperm cell fuses with an eggit triggers the sudden release of zinc atoms from the egg's surface. That's been known since Now, for the first time ever, scientists have observed these "sparks" in action see video above and figured out where they come from.
Watch as the ovulation process occurs, and then millions of sperm swim upstream on a quest to fertilise an egg. New Zealand Herald. Subscribe to Premium.
To become pregnantthe following steps must occur:. Following ejaculation, the semen forms a gel that protects it from the acidic environment of the vagina. The gel is liquefied within 20 to 30 minutes by enzymes from the prostate gland.
To become pregnantsperm from a male has to meet an egg from a female. This can happen when a male and female have sexual intercourse, when the penis is in the vagina. If an egg has been released and is in the fallopian tube, one of these sperm may reach the membrane of the egg and get inside it.
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