Twin births are at their highest ever in the U.S.. So, where does New Jersey rank?

The federal government finds expectant mothers in the Garden State are more likely to birth twins than in any other state. The number of twin babies born between 2012 and 2014 (per 1,000 births) is at 43.1, far above the national rate of 33.6, NJ.com reports. That amounts to 13,364 sets of twins born here in just a few years.

Nationally, twin births are at their highest ever.

However, N.J.'s overall birth rate is slightly lower than the national average.

Jennifer O'Dea, of Red Bank, (herself a mother of 3 year old twin boys) suspects the rise in twins is due in part to the increased use of in vitro fertilization, during which infertility doctors will often implant two or more embryos in hopes of yielding a viable pregnancy.