Celebrity Parents Jason Aldean's Wife Brittany Shares New Family Photo, Reveals Daughter & Son Were Almost IVF Twins "We almost put Memphis and Navy in at the same time because after our long infertility journey, multiples seemed amazing to me," says Brittany Aldean By Benjamin VanHoose Published on October 13, 2020 12:38 PM Share Tweet Pin Email Jason Aldean's two youngest were almost planned to enter the world at the same time. On Monday, the "Got What I Got" singer's wife Brittany shared a glimpse at their family's recent photoshoot, including their two little ones, daughter Navy Rome, 20 months, and son Memphis, 2½, plus Aldean's older daughters, daughters Kendyl, 13, and Keeley, 17. "Christmas Card??🎄 I like the second one lol," she captioned the post on Instagram, also showing off a bit of a behind-the-scenes blooper wrangling the kids for the photo op. In a subsequent post, Brittany, 33, revealed that she and Aldean, 43, almost chose to have Memphis and Navy at the same time during their in vitro fertilization (IVF) process. Brittany Aldean with daughter Navy; and Jason Aldean with son Memphis. Brittany Aldean/Instagram (2) "FUN FACT: Both of our babies are IVF babies. We almost put Memphis and Navy in at the same time because after our long infertility journey, multiples seemed AMAZING to me," she wrote. "I was talked out of it and Memphis was transferred first." "How crazy to think that my babies who look almost identical could have been twins?☺️ This little cutie pie is... NAVY👆🏼😎," added Brittany alongside a photo of her daughter. Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of what PEOPLE has to offer, from juicy celebrity news to compelling human interest stories Brittany Aldean Shows Off Daughter Navy's Nursery in New Home — Complete with a Castle The Aldeans have previously been open about their struggle with infertility, the cause of which was Brittany's endometriosis, abnormal tissue growth inside the uterus that can inhibit conception. Their decision to have two children close together was intentional, Aldean previously told PEOPLE. "After having our son, we knew we wanted to have two kids," he said back in 2018. "I have my two older daughters already, so after Memphis was born we knew we wanted to have another one pretty quick — to go ahead and knock it out and have one that was a little closer in age to him." RELATED VIDEO: Jason Aldean Offers Support to Brother-in-Law Chuck Wicks During Infertility Journey: His 'Attitude Was So Positive' How Jason Aldean Supported Brother-in-Law Chuck Wicks and Wife Kasi During Infertility Journey "I would much rather knock it out now while we're used to having one in diapers and formula and all of that," he added. "I think it's tougher when you get out of that and wait a couple years and then have to go redo it all. … We just wanted them to be close in age, and we figured we're already in that mindset now, so why not?" Her children are frequent guest stars on Brittany's Instagram, including one back-to-school snapshot of Memphis in which the proud mom raved about how quickly he's growing up. "His backpack is full of all his girls (all Ana and Elsa) which he is now calling 'his girlfriends' .... breakin mamas heart😭," she captioned the photo, while in another post she called her daughter "my little pumpkin pie."