"My love, Thank you for allowing me to be apart of your journey and entering your life that day at the bel air hotel", he begins.
In a black and white Instagram post that showed off her burgeoning baby bump, she wrote, "My greatest dream realized!"
Fans were elated with the news, with thousands congratulating the couple for the pregnancy.
The pregnancy pillow spotted in Khloe's picture may actually be for her sisters - as her sister Kylie is said to be expecting her first child with beau Travis Scott.
The source went on to reveal that Odom was particularly upset by the way in which Kardashian announced her news and spotlighted God's timing.
Lamar Odom is said to be quite upset about Khloe Kardashian's recent baby news.
Khloe Kardashian 'ecstatic about being pregnant'
On her announcement post, Khloe offered thanks to God and to her partner Tristan. "I'm so excited. That kid is going to be happy and well taken care of", she told photographers.
He is also feeling sad, at the same time, that the 33-year-old Keeping Up With the Kardashians star isn't starting a family with him. I will never forget how wonderful you've been to me during this time!
'I simply had to trust in Him and be patient.
It's been the story that has captured our hearts and minds: Khloe Kardashian is pregnant with her first child. He likes things his way, but Kylie's also getting pulled by her mother Kris who also likes to control things, and that makes things hard for her to deal with during her pregnancy'. She added, "You have made this experience even more magical than I could have envisioned!" I am beyond excited! And now that Kardashian's pregnancy has already been confirmed, it's possible that Kylie Jenner will be the next one to make an announcement.
'Hey daddy, ' wrote the reality star in the public post in the comments section as she promoted her Good American brand by modelling a fishnet panelled sweatsuit.
Japan Approves Deployment of US Aegis Ashore Missile Defense Systems
Last month, President Donald Trump urged Prime Minister Abe to purchase more USA military equipment amid threats from North Korea. Japan plans to deploy and operate the Aegis Ashore from 2023.