"Sister Wives" stars Robyn Brown and husband Kody Brown welcomed their second child, a baby girl, over the weekend.

"Right now we haven't decided on a name," Robyn said, according to People. "We have been searching for the right one for months, but nothing has felt right. We are just getting to know her now and waiting until she whispers it in our ear."

The little bundle of joy weighed nine pounds, nine ounces at the time of birth, measured 21.5 inches long and kept her mommy on her toes in the days leading up to her birth at 10:10 p.m. on Sunday, according to US Weekly.

"Two days away from my due date. We are all ready to meet Baby Sister! Trying to be patient but can't wait to see her sweet face," Robyn tweeted on Jan. 5.

Three days later, the eager mother took to the micro-blogging platform to post that she had missed her due date. "Hmmmm....due date came and went. When is this little girl going to come?" she wrote before finally announcing the happy news a few days later.

The proud parents announced the pregnancy in June. "We are so happy to announce an eagerly expected new member of the Brown family!" they said at the time, as HNGN previously reported.

Kody has four wives - Robyn, Christine, Meri and Janelle- on which the TLC reality show is based on, documenting their lives as a polygamous family. With the newest addition to their family, Kody is now a father to 18 children, according to Entertainment Tonight.

The newborn is Robyn's second child with Kody and fifth overall. The pair also has a 4-year-old son together named Solomon. Robyn has three other children from a previous relationship - 15-year-old son Dayton, 13-year-old daughter Aurora and 10-year-old daughter Breanna- who were officially adopted by Kody in June.

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