LGBT families are on the cusp of dramatic growth.

The Bergman family, from left: Abby, 23, Jenna, 20, Natalie and Kim, center. (Photo: Courtesy of Kim Bergman)

When Sarah Koehler came out about 15 years ago, she ached for the pieces of her future that might go missing.

“I thought I’d never get married, never have kids. I went through an active grieving process,” she said…