If a couple, from certain reasons is trying to conceive twins, has to know that for example in the United States of America 32 of 1000 births is a twin birth. You have to take in consideration that you have a pretty good chance of having natural twins, only if some factors like: if genetics, your body, your age, the right sperm, and the right egg meet up. The medicine hasn’t found, yet, a way to predict twin births, but nothing is impossible. Theoretically, every woman has a small change to get pregnant with twins.
There are two different types of twins:

The genetics influences what type of twins that women have, even if in their family history nobody have had twins before.
The history from the woman’s mother side of the family indicates if she has a higher chance to have twins than usual, if the woman doesn’t have twins in her mother’s family history then she has small chances of developing a twin pregnancy.
Another factor that increases the chances of conceiving twins is the age. If a woman is trying to conceive a baby later in life she will have more chances of giving birth to twins then when she was young, because of the fact that the hormones and the release of eggs is often a little off.

The studies show that the race is another factor that influences the chances of having twin pregnancy. The African American women are known to have more twin pregnancies than any other race.
Some health care providers and specialist consider that having sex later in the ovulation cycle makes you more prone to have twins, and that eating yams by a woman will increase her chance of having twins.For couples who are trying to conceive twins, here are some recommended strategies based on reader submitted experiences, cited population statistics and "old wives tales":

-grow or gain weight - the American College of Obstetrics and Gynecology correlates the rise in multiple birth rates with rising rates of obesity (the BMI over 30), witch result in fraternal twins pregnancies;
-fertility assistance – reproductive technology, drugs that stimulates ovulation, in vitro fertilization can lead to a multiple pregnancy;
-have a numerous family – the increased number of birth will increase the chance of having twins in a subsequent pregnancy;
-conceive while breastfeeding – some specialist consider that the chance of twins or multiples is increased if a woman conceives while breastfeeding, other specialist totally disagree and claim that women cannot get pregnant while breastfeeding;
-get pregnant on birth control pills – the birth control pills are 99.9% effective, but if the pills aren’t taken consistently, or if the hormonal mix of a particular drug type simply doesn't provide enough coverage to completely prevent ovulation the chances of having twins increase.

This picture will certainly steals a big smile from you. There are very adorable, charming and funny. How can you not like them or want one?