Kailyn Lowry is pregnant with her third child -- and the Teen Mom 2 cast member penned a heartfelt article about the brand-new addition to her family on her website. Now, Isaac and Lincoln's mama took a moment to tweet her appreciation to those who offered encouraging words after this milestone announcement.

And Kail -- who revealed she doesn't know the baby's gender and expressed she "can't wait" to meet her bundle of joy this summer -- is also getting sweet messages from some fellow MTV folks on Twitter.

Be sure to offer your congrats to the Delaware resident in the comments -- and keep watching Kail and her clan every Monday on Teen Mom 2 at 9/8c.