Mackenzie has received plenty of feedback from fans curious as to why she'd rush into another pregnancy at such a young age, and her response? Shocking. "If a doctor told you your body would no longer be able to have babies after the age 21. And your married and 19. What would you do?" she tweeted on September 8.
Though Mackenzie didn't elaborate on her doctor's orders, we're thinking her inability to have children past 21 has something to do with increased medical complications due to her diabetes. But hey –– this blonde bombshell certainly doesn't need to defend herself. After all, she graduated high school and cosmetology school, and let's not forget that she's married to her baby daddy, Josh McKee!
Oh, and by the way, Briana Dejesus has some advice for Mackenzie: "have sex til ur vagina explodes."
Words of wisdom courtesy of Teen Mom, y'all!