"Baby Lo," Kail captioned the candid photograph above, which finds the newborn resting comfortably on his loving mama. And the peanut's hair? It brings back memories of Isaac's adorable quip about Lincoln's locks right after his baby bro was born.
Speaking of Isaac and Linc, Kail shared two heartwarming photos of her boys all together:
And has Kail decided on a moniker for her tiniest fella? Well, not quite:
Meanwhile, Kail's MTV cohort Chelsea Houska had a few suggestions:
We're waiting for that name reveal, Kail! But in the meantime, keep the pics of your beautiful brood coming! And be sure to watch Kail and her clan every Monday on Teen Mom 2 at 9/8c.