Leah Messer's former husband Corey Simms might be in the highest heavens right now. After getting the full custody of his twin daughters Ali and Aleeah from the "Teen Mom 2" star, he has also welcomed a new baby girl with current wife Miranda on Sunday.

Corey's dad Jeff Simms revealed that the new addition to their family is doing well in the hospital despite the baby coming out of her mother's womb earlier than expected. He even shared several photos of the baby on Instagram.

"Remington Monroe surprised us this weekend with her early arrival," the proud grandfather posted. "She and her mommy are doing well. I am hopelessly in love! #remi."

Meanwhile, the gushing father proudly shared the good news with an exclusive interview with MTV. He said that he was extremely happy and excited when the baby came out. "Miranda and the baby are both healthy and happy, and we can't wait for Ali & Aleeah to meet their little sister," Corey shared.

Miranda gave birth to Remington "Remi" Monroe Simms at exactly 12:32 p.m. on Sunday, Nov. 8. She was only 32-weeks at that time, but she still managed to come out with a healthy weight of 4 pounds and 11 ounces.

But while Corey is having an amazing time as a parent, the mother of his twin daughters said that she is still hurting after she lost the custody of the 5-year-old girls.

In a recent Facebook post, the reality show star claimed that she is being treated badly. While she did not mention names in her post, fans speculated that she might be talking about Corey and his wife, who took her daughters away from her.

Messer lost the primary custody when the courts decided last month that she was not doing her parental responsibilities when she was said to be habitually bringing her daughters to school late.

The "Teen Mom 2" star is said to be planning to win back her daughters in the future.