Their 18th is only 8 months old, but Jim Bob and Michelle Duggar have announced that she is 12 weeks along with baby #19. Wow!
My youngest, Princess P., is the same age and I can't even begin to think about having another one so soon. I'm still adjusting to the 3 I've got now! DH does talk about wanting a fourth but I'm taking things one baby at a time. With Miss Scarlet and Rusty, I didn't start feeling like I was up to the challenge of having an additional child until about their second birthday.
Of course, had God seen fit to bless us with a new pregnancy sooner than that, we would've found a way to make things work. I do strongly believe that babies should be seen as blessings rather than burdens. But I just can't begin to imagine how Michelle Duggar and other moms who have very large & closely spaced families manage it.