LOUISVILLE, Ky. (WHAS11) -- The waiting game is over for one Elizabethtown family whose infant son got a new heart over the weekend.

WHAS11 first introduced you to Eli Alexander and his parents in January. At that time, his parents didn't know if their son would live to be three months

For Nick and Caitlyn Alexander, it’s still hard to believe.

As they look at their baby for the first time in his short four-month life, they are confident he'll have a fifth.

"The reality of it is you don't know. You believe it with all of your heart but then you've got to remind yourself it might not happen. Because you have to keep that balance of being hopeful but being hopeful but then not getting disappointed if it didn't turn out the way you wanted it to,” Caitlyn said.

Born with a congenital heart defect, Eli has had countless procedures. But his most important one came Friday. His mom took the call from the doctor and then shared the good news with his dad.

Nick said, "She's of course hysterical and all I could make out was we got a heart and it was incredible."

The couple learned Eli had been offered a heart, from another baby, in another city that was a match.

The doctor examined Eli and then flew to get the heart. Less than 24-hours later, the Alexanders were holding Eli for the first time in months.

"It was amazing to feel him in my arms again and know that there was a chance to hold him for the rest of our lives,” Caitlyn said.

Listening to the new heart, the parents said they were grateful and they know they are lucky.

"When I was holding Eli all I could think was this is the first time I've held him in months. And just yesterday there was a mom holding her baby for the very last time so that I could hold him. So it a very heavy weight and we think about it every day, every second, what they sacrificed so that we could have our boy,” Caitlyn said.

Now, the boy they always knew was a fighter, is getting a second shot at the life his parents always wished for.

You can follow Eli’s journey and help support his family here.