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The Duggars would love another child... how about you?

How do you know when your family is complete?

Michelle Duggar, matriarch of America's most famous big family, told TODAY Moms this morning that she would love to have more children but she thinks at 44 she may be past her fertile years. Her youngest, Josie, is 17 months, and that's actually the longest she's gone without a pregnancy since her oldest was born 23 years ago.

Related video: Duggars would 'welcome' 20th child

TODAY Moms chatted with the entire Duggar family, stars of the hit reality TV show "19 Kids and Counting," this morning. We'll post the web-extra video of them answering your questions later today.

In the meantime, seeing their many, many adorable children got us thinking: Figuring out how many kids to have is a pretty big decision, whether the magic number is 1, 2 or 19. Michelle and Jim Bob Duggar say they leave the decision entirely in God's hands.

Related video: Flashback! The Duggars and their 17 kids

For those of us who take a more self-determined approach to family planning, contemplating whether to have a second or third child can cause a lot of sleepless nights. Of course, it seems everyone has an opinion. If you have an only child, you get asked when you intend to give him or her a sibling. Two of the same gender? People ask if you're going to try for a boy/girl. If you have three or more kids, cue the snarky remarks about, well, turning into the Duggars. You just can't win!

Book excerpt: "A Love That Multiplies"

The only opinions that really matter, of course, are you and your partner's. And even those can be hard to sort out. What happens when one partner is ready for more children and the other isn't? 

How do you know when your family is complete? Share your thoughts in the comments below.

One of America's largest families, with 21 members, the Duggars credit God's grace and "a lot of love" in raising their "miracle baby," Josie, and successfully making ends meet.