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Those who were pregnant were asked if it was intended and what contraceptive method (if any) they were using at time of conception.

For couples who have trouble conceiving, in vitro fertilization (IVF) is often the last resort.

Some tribes immure girls in the dark from the age of ten to the age of seventeen, for fear that the sun's rays should render them pregnant.

When a female emperor penguin is ready to mate, she approaches the male and lies flat on the ground waiting for him to impregnate her.

She said that Mortensen was the father of her baby, but at the time she became pregnant she had been dating a few men.

A woman's age plays a key role in her ability to get pregnant, but a landmark study now shows that dad's age may be just as important.

Youth development programmes are shown in some cases to lower pregnancy rates but in other cases to have no effect or even to increase them.

But after an operation to smooth out the scar tissue she was told she should be able to conceive naturally.

In a surprising finding, researchers have discovered that the same pill used to prevent pregnancy can actually help a woman conceive.