And it's even more difficult to believe when it looks like the 38-year-old hasn't aged a day since - judging by the photo husband Brian shared with fans to mark the couple's wedding anniversary this weekend.
In her black leather jacket, polka-dot tee and her stylish sunglasses perched on her braided hair, Amy beamed in the adorable photo husband Brian shared on his Instagram page to celebrate the couple's anniversary on Sunday.
"Happy 7th Wedding Anniversary to this absolute queen," BOD captioned his sweet post.
It's possible that the couple could also be celebrating another milestone as, after plans had appeared to stall last month, they have finally been given the green light to extend their €1.8m Rathmines home.
According to The Herald, Brian and Amy now plan to replace a two-storey extension with a three-storey one that will allow for a new kitchen, bedroom and study.
Amy has said that she has spent time thinking about how to build a "functional family home" out of the current house that "needs a lot of love."
"I want to stay true to the charm of the old house," she said, "but it needs to feel like it's a functional family home for the age we're living in."