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 / Updated  / Source: TODAY
By Chris Serico

After a "sometimes heartbreaking" stretch of infertility, Lady Antebellum singer Charles Kelley and his wife, Cassie McConnell Kelley, are going to be parents for the first time, according to an enthusiastic update posted Friday to her blog.

"Charles and I are SO BEYOND EXCITED to share with y'all that we are expecting a baby!" opens the post, whose accompanying photo shows Cassie and Charles holding corresponding "mother" and "father" mugs. "He or she is due in February and we are so happy we can hardly stand it. Like, ecstatic and I'm crying even as I type those words!"

It's particularly satisfying for a couple who've endured their share of frustration with infertility. "I know there are a lot of women out there who have walked the road of a fertility struggle," Cassie wrote, "and we can all grow, heal, and understand each other better through our shared experience."

Charles' Lady Antebellum band mate, Hillary Scott, rejoiced Friday on Twitter, where the mom declared, "Miracles happen!" and called the news "[inspiring], encouraging, & BEAUTIFUL."

Cassie and Charles' fertility struggles began years ago, Cassie wrote. "I don't know about other moms (or future moms!) out there but I just assumed that when we wanted to start a family, it would happen just like that," she added. "Well, it didn't."

She raved about her experiences with Dr. Abby Eblen, a Nashville fertility specialist, but endured some painful tests and harsh truths along the way. "[Eblen] informed us that we had about a 1% chance of conceiving a child naturally," Cassie wrote. "Yeah. 1%. As far as percentages go, that's not awesome."

While exploring other options to "expand our family," they got the good news.

"I want to give a special shout out to my husband, Charles, for being the most incredible human," Cassie wrote. "His love, support, passion for our marriage and our future children has never, EVER [wavered], even when the frustration seemed insurmountable. I am so lucky to have a best friend and partner in life like him, and our child couldn’t have scored a better dad!"

She asked readers to spare "annoying clichés" — including "Just relax and it will happen!" and "You just need to go on vacation." — while encouraging couples who are trying to conceive. "Don't even get me started on the 'Gosh, y'all have been married forever, when are you gonna have kids already!?' comments. Basically just never say that to anyone."

She wrapped her post with the hashtag #Grateful, and a reflection on her six years of marriage. "God knows us and he knows our marriage," she wrote, "and he blessed us in just the right time."

Follow TODAY.com writer Chris Serico on Twitter.