An Austin woman gave birth to identical triplets at Ascension Seton Medical Center in March, the hospital announced Wednesday.

Devon Bernier and her husband Chad Mullenix, both in their 40s, call the birth a "small miracle," according to the hospital's statement.

Soon after the couple married in 2017, Bernier began in vitro fertilization, or IVF, using an egg donated by one of her sisters. During a doctor's visit, the couple was told that there were three heart beats. The news "blew their minds," according to the statement. Bernier and her husband were nervous about the potential risks of a multiple pregnancy, and so waited until delivery to learn the sex of the babies.

Maverick, Colton and Jack Mollenix were born as healthy baby boys on March 29.

Maverick, Colton and Jack Mollenix were born March 29. Identical triplets are exceedingly rare. (Ascension Texas)

The hospital says COVID restricted the couple's visitors during Bernier's stay, in addition to other safety measures.

"Although I couldn't see their faces, I felt very supported by the staff. They were warm and hands on," Bernier said in the statement. "I loved seeing my babies with them and knew they were taken care of."

Identical triplets are exceedingly rare. One study found identical triplets to occur 20 to 30 times per 1 million deliveries. The outcome is much more likely with assisted reproduction, which make up the majority of instances.