Motherhood is one of the most sought-after virtues for every woman. If as a mother, you have ever dreamt of having a twin, or multiple kids at ones, there is no need to worry as several studies have shown that there are certain factors that can make this type of pregnancy more likely.
The American Society for Reproductive Medicine estimates that up to 30 percent of pregnancies that occur while using gonadotropins result in twins or multiples.
Gonadotropins are hormones synthesized and released by the anterior pituitary, which act on the gonads (testes and ovaries) to increase the production of sex hormones and stimulate production of either sperm or ova.
These drugs are generally considered safe and effective. But like any medication, there are potential risks and side effects that go along with using fertility drugs.
According to some studies, up to 30 per cent of pregnancies conceived with gonadotropins lead to multiples. Most of these pregnancies are twin pregnancies, but up to 5 per cent are triplet or higher order pregnancies.
Another study has shown that In vitro fertilization (IVF) is one type of assisted reproductive technology (ART) that can also be of help. It involves using medical intervention in order to conceive. Women who use IVF may also be prescribed fertility medications before the procedure to increase their chances of getting pregnant.
For IVF, the women’s eggs and man’s sperm are removed before they are fertilized. They are then incubated together in a laboratory dish where an embryo is formed.
Through a medical procedure, doctors place the embryo in the woman’s uterus where it will hopefully implant and grow. To increase the odds that an embryo will take hold in the uterus, more than one may be put in during IVF. This raises the likelihood of having twins.
IVF has enabled millions of infertile couples all over the world to become parents. Data collected by the Centre for Disease Control and Prevention (CDC) indicates that the rate of IVF-conceived triplets in 2014 was 1.5 per cent of pregnancies.
“IVF twins are relatively common, with the twin rate highest for women younger than 35, at 12.1 per cent per transfer in 2014. The IVF twin rate is lower for women over age 35—91 per cent for women aged 35 to 37 and 5.3 for women ages 38 to 40—likely due to the overall decreased success rate as a woman ages,” it shows.
The data also showed that there were 133,155 twins born in the United States in 2015. That’s 33.5 per 1,000 live births, or put another way, about 3.35 per cent of live births.
“There were 3,871 triplet births, 228 quadruplet births, and 24 quintuplet or higher order births. These numbers include naturally occurring multiples, along with those conceived with fertility treatment.
“The rate of multiple births increased and peaked during the 1990s but has been declining over the past decade. The percentage of triplet and higher order pregnancies has dropped 36 per cent since 2004, the study shows”.
However, a study from www.verywellfamily.com says chances of having twins will depend not just on your use of fertility drugs, but also your family history, race, age, and many other factors. These factors do work together. In other words, a tall woman with a family history of fraternal twins is more likely to conceive twins during fertility treatments than a short woman without any family history of twins.
The site also added that your chances of conceiving twins will also be affected by your particular cause of infertility. A young woman with healthier eggs is more likely to conceive twins than a woman over 40, whose egg quality is poor.
http://www.vivo.colostate.edu/hbooks/pathphys/endocrine/hypopit/lhfsh.html
https://www.britannica.com/science/gonadotropin
https://www.cdc.gov/
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