One big family! Tyler Baltierra and his wife Catelynn Lowell are currently expecting their third child together, and they’ve already got plans for baby No. 4. The Teen Mom OG couple is looking forward to welcoming a precious little girl, whom they plan to name Tezlee, very soon — Catelynn’s “expected” due date is March 6. While taking to Instagram Live recently, the reality star said she “definitely” wants to grow their brood after she gives birth! Scroll through the gallery.