If you're pretty sure about how many kids you want or were pretty sure you didn't want any more, how long would you wait before getting permanent birth control? (Actually I think this also includes methods like Essure.)

We are pretty sure we're one and done and don't want any accidents. I can't even imagine a world where we had two kids. But I see bees sometimes questioning whether they might change their mind about having two, and it makes me wonder if I should give it time. We used to be so sure we didn't want kids that I considered permanent birth control years ago and now I'm glad I didn't do it.

So...if you plan on getting this done, how long will you wait?