LOS ANGELES >> Khloe Kardashian is pregnant.

The reality star confirmed Wednesday on Instagram that she is expecting her first child with boyfriend Tristan Thompson. She included a photo of her pregnant belly with the post.

The 33-year-old Kardashian said she is “thankful, excited, nervous, eager, overjoyed and scared all in one” and called the pregnancy “my greatest dream realized.”

Kardashian is the younger sister of Kim Kardashian West. Thompson plays center-forward with the Cleveland Cavaliers.

The couple’s pregnancy had been rumored for months. Khloe Kardashian said in her post Wednesday that they intentionally kept the news quiet so they could “enjoy this between our family and close friends as long as we could privately.”

My greatest dream realized! We are having a baby! I had been waiting and wondering but God had a plan all along. He knew what He was doing. I simply had to trust in Him and be patient. I still at times can't believe that our love created life! Tristan, thank you for loving me the way that you do! Thank you for treating me like a Queen! Thank you for making me feel beautiful at all stages! Tristan, most of all, Thank you for making me a MOMMY!!! You have made this experience even more magical than I could have envisioned! I will never forget how wonderful you've been to me during this time! Thank you for making me so happy my love! Thank you to everyone for the love and positive vibes! I know we've been keeping this quiet but we wanted to enjoy this between our family and close friends as long as we could privately. To enjoy our first precious moments just us ❤️ Thank you all for understanding. I am so thankful, excited, nervous, eager, overjoyed and scared all in one! But it's the best bundle of feelings I've ever felt in my life! ❤️❤️❤️

A post shared by Khloé (@khloekardashian) on Dec 20, 2017 at 2:41pm PST