How long till I'm okay?

Vicca • Mommy to a 5yo Beauty queen, and 3 angel babies. Step mommy to 1 and expecting our first together March 2017
When does the random crying end. I keep catching myself running out back to cry, or to the bathroom to cry, even at work. When does it stop? Seems SO is okay now, he still brings it up, talking about it seems to help him. But I just cry. And cry. When does it end?