how to have twins
What are the odds of having twins?
In the past years, multiple births have been multiplying at a fast rate. Newest studies report that the number of twin births has increased by nearly 75% in the past 30 years. In the U.S in 1980, only 18.9 sets of twins were born per 1,000 births. In 2014, 33,9 sets of twins were born per 1,000 births, according to a report on birth data.
When it comes to having twins, not all regions are equal. Central Africa holds the top for the highest twin birth rate, while Asia and Latin America have much lower rates of twin births, according to an international study.
Scientists have created twins databases for 76 developing countries. They include data on approximately 2.5 million births by nearly 1.4 million women. The numbers showed that on average, 13.6 twins per 1,000 births were born. This is comparable with intermediate rates seen in Australia, the United States, and many European countries of 9 to 16 per 1,000 births between 1987 and 2010.
Factors that influence your chances of getting pregnant with twins
What’s causing this multiple-baby boom? Experts say the following are a few of the factors behind twin birth:
If twins run in your family, then you have greater chances of carrying twins. Heredity doubles your chances if it’s on your mom’s side. Your partner’s family tree might be bursting with twins but this won’t increase your odds.
Ethnicity is another factor that can increase your chances of carrying two babies aboard your mothership. Black women are more likely than Caucasian women to give birth to twins. Asian and Hispanic women have even fewer chances than Caucasians to get pregnant with two or more kids at a time.
The highest rates of twin births are seen in Central Africa, especially in the Yoruba ethnic group, with more than 18 twins per 1,000 births. The twinning rates in Asia and Latin America are less than eight per 1,000 births.
Your odds of having twins go up with each pregnancy.. And if you’ve had given birth to twins before, you’re more likely to do so again.
Being an older women can help. Studies have shown that women who are over 35 years have higher chances of getting pregnant with non-identical twins. This is likely because woman’s ovaries start releasing more than one egg each month,. Another cause is that older women had higher levels of a hormone called FSH (follicle-stimulating hormone).
Some researchers claim that women with a higher body mass index (BMI) have higher chances of carrying twins. A BMI of 25 or higher is termed overweight, while 30 and above is considered obese. Women who were obese before pregnancy are significantly more likely to give birth to non-identical twins, However, doctors don’t advise women who want twins to gain weight.
Increasing the chance of twins
Couple holding hands whilst seeing a doctor
Fertility treatments can increase the chance of having twins.
There are many unproven claims about how to increase the likelihood of conceiving twins. Some people advise following specific diets or using certain alternative therapies, but there is no scientific evidence to support these methods.
Fertility treatments, particularly IVF and ovary stimulants, do increase the chances of having twins. However, a twin pregnancy is riskier for both the woman and the developing fetuses. For this reason, some fertility clinics advise against implanting multiple embryos during IVF treatment.
The CDC recommend that younger women who are having their first fertility treatment select just one embryo for transfer to their womb.
As the success of fertility treatment is improving, there is often less need to transfer more than one embryo. In the U.S., the number of IVF treatments involving the transfer of three or four embryos decreased significantly between 2007 and 2016. Transferring just one or two embryos reduces the likelihood of a multiple pregnancy.
A twin pregnancy increases the risk of:
low birth weight
disabilities at birth and congenital health conditions, such as cerebral palsy and autism
diabetes during pregnancy
needing bed rest while pregnant
HOW DO YOU KNOW IF YOU ARE HAVING TWINS?
There’s no way to know whether you’re having twins until your first ultrasound around nine weeks, though two heartbeats and/or chorion sacs may be detectable as early as six weeks. If you happen to be monitoring your pregnancy early and closely (as fertility patients do), blood tests—which end up revealing higher amounts of hCG, the pregnancy hormone—could also give an indication.
It just so happens that hCG is the hormone that brings on morning sickness, so women pregnant with twins may be more likely to experience nausea and fatigue. They may also show a little sooner than singleton pregnancies. Still, every pregnancy is such an individual experience, so there are no dependable clues that you have two babies on board—or more!