twins on a rooftop lying down

What Are the Odds of Having Twins?

It’s the most exciting moment of your life. You’ve just peed in a cup, dropped a $15 stick into it and now you’re reading a plus sign. You are pregnant. Congratulations.

While you’re certainly overwhelmed with emotion, all of a sudden another though pops into your head. Oh crap, what if it’s twins?

First are foremost, I think the parents of twins who are reading this would say that they are an absolute blessing. Two for the price of one!

Now that we got the pleasantries out of the way, let’s talk about twins. Twins means you need to buy double the diapers, double the formula, a double stroller, two car seats… You may have the best instagram pics, but you have to put in twice the work and money when you have twins, so now you might be scaring yourself.

What are the odds of birthing twins?

In 2018, there were 123,536 sets of twins born in the United States, meaning the odds of having twins is about 1 in 31 (or a 3.2% change), according to the CDC. You know what’s crazy? 40 years ago the odds of having twins was almost half as likely. In 1980, the odds of having twins was 1 in 53 (or a 1.9% chance). Identical twins are much less common, and we will likely devote another article to the breakdown of twin types in the future.

You’ve probably heard that there are certain factors that will increase your chances of having twins, such as how old you are.

What are the chances of having twins if I’m over 30?

Below we’ve broken down the odds of having twins by age range, so you can very conveniently look into determine the likelihood of needing to add an extra high chair to your registry.

The chances of having twins by age range
Under 20 1 in 58 (1.7%)
20-24 1 in 43 (2.3%)
25-29 1 in 33 (3%)
30-34 1 in 28 (3.6%)
35-39 1 in 23 (4.3%)
40-54 1 in 19 (5.1%)

Don’t worry – you’ll know soon enough if you have twins and be left with plenty of time to prepare.

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