Teen Mom 2 star Kailyn Lowry is pregnant with Baby No. 3, and she calls it an "exciting time" in her life.

Lowry, a 24-year-old former 16 & Pregnant star, announced on her website Friday she is expecting her third child without revealing the identity of the baby's father.

"Before you take judgment on me please realize that this is my life and I am 100% happy; my heart is full... If you've googled my name the past few weeks, the speculation of so many things have surfaced -- no one knows what's true, what's false and what really goes on in my day-to-day life. Since everyone can't wait for the confirmation; here it goes. I'm pregnant," Lowry wrote after multiple reports her was pregnant had surfaced Thursday night.

"I'm sad that I should have known that people in my life would sell me out before I was ready. Like any normal person, I want it to be a happy time. I wanted this to be a private time so I could be excited while not getting chased by paparazzi and bothered with crazy headlines. Please know this was a choice I made, I already know some won't agree but I've been showered with support by the ones I love since I found out."

Lowry then revealed the reason why she waited to publicly announce the big news: "I've had a lot of health complications leading up to this pregnancy and I was not ready to release such private information on my own just yet being that I am so high risk with this pregnancy. I didn't want to announce just to have another miscarriage and suffer through another grief."

Lowry suffered a miscarriage in 2015 when she was pregnant with her second child with Marroquin. She is already mom to son Isaac Elliot, 7, whom she had with ex-boyfriend Joe Rivera, and son Lincoln Marshall, 3, whom she shares with ex-husband Javi Marroquin.

"Of course, I was filmed on the show saying I didn't want any more kids but I'm pregnant again. I know so many will have comments on this but here's the thing -- I didn't want to bring another child into a failing marriage. Shortly after I started having complications, the option of having more kids was almost taken away from me. When I started thinking long and hard, I knew I wanted more," the reality TV star continued.

"This was the choice I made. This is the baby I thought I wasn't sure if I could have. I know this isn't an ideal situation but I know everything will be okay. And like I say in my book -- with a little bit of hustle and heart, I can and I will survive anything. Having another child is something I am so happy about and I just can't wait. My boys are so excited, those who love me are so excited, and I hope that everyone can just be happy for me during this time."

As for whether Rivera knows about the pregnancy, Lowry said, "Jo has been aware of things for a while now. He was one of the first to know because we can have adult conversations about things while he respectfully gives his opinions. We always share concerns and move forward."

And what about Marroquin, whom she wed in 2012 but later divorced?

"Unfortunately, I never got to have a conversation with him about it," said the Teen Mom 2 star, adding that while she's "halfway" through her pregnancy, she wants to "wait until the summer to find out" whether she's having a boy or girl.