photo courtesy of pinterest.com Monday night, we announced 'Teen Mom 2' star, Kailyn Lowry had given birth to baby number four on July 30th. Now, we have more baby news from the franchise as Kail's co-star, Chelsea Houska DeBoer, has shared she's expecting baby number four, as well. On her Instagram page , she showed a photo of, what appeared to be a wooden pole for construction, and names written on it: Cole, Chelsea, Aubree, Watson, Layne, Baby with the announcement- " One more DeBoer! Coming early 2021 🖤" This will be her third child with husband Cole DeBoer , whom she married in October 2016. Aubree is from her relationship with Adam Lind, which we saw play out on '16 & Pregnant' and continues to be a roller-coaster on most seasons of the hit MTV series 'Teen Mom 2,' which returns with a new season on September 1. Cole has been such a great stepdad to Aubree, 10, that she has even taken his last name (it's a hyphenate...