Jana Kramer is having a girl. The 31-year-old "One Tree Hill" alum revealed that she and husband Michael Caussin are expecting a baby girl.

"I am currently 15 weeks along and my husband and I were so anxious to find out the sex of our baby that we did the early blood work test at 10 weeks to find out that we are having a baby ... GIRL!" she wrote on her first ever pregnancy blog for People.

The mother-to-be continued, "I had my nurse call my best friend Kathryn to give her the news. We then invited our closest friends over and had them fill up water guns with paint of either pink or blue. Mike and I were so anxious to see what color it was going to be,"

The singer and country artist is due to give birth early next year.

Last week, Kramer opened up to People about becoming a first time parent, even calling motherhood the "greatest job" she could ever have and added that she "like the luckiest girl alive to be on this journey with the love of my life."

"I am so incredibly excited about becoming a father. For me it is just another dream come true and I can not imagine tackling parenthood with anyone else but Jana," Caussin added.

The couple's exciting news comes less than three months after Kramer and Caussin tied the knot in a small ceremony in Charlottesville, Va. Us Weekly reported that the bride wore a custom Galia Lahav gown that featured pearls.

In her blog post, Kramer also opened up about her desire to start a family and admitted experiencing "all day" morning sickness.

"Mike and I were so happy, but then came the part that I wasn't quite prepared for the morning sickness," she wrote. "My mother always told me to never use the word hate, BUT I HATE the word morning sickness. It's not just in the morning. My all day sickness kicked in during week six. I really dislike throwing up - I mean, who actually likes to throw up?"

Prior to her relationship with Caussin, Kramer was engaged to fellow country musician Brantley Gilbert.  She was as previously married to Michael Gambino in 2004 and to Johnathon Schaech from 2010 to 2011.