Erica revealed she's expecting her first child with Charles via Instagram on Thursday.
"So excited to announce that we will soon be a family of four! Baby Sanders coming this August," the 34-year-old reality TV star captioned a photo of the couple as well as her 1-year-old daughter Holland from a previous relationship. "#bigsis #twoundertwo #familyoffour."
Erica and Charles, a Texas-based independent insurance adjuster for the Federal Emergency Management Agency, got married in December 2017 in front of 300 guests, including many familiar faces fromThe Bachelor franchise.
The pair tied the knot just two short months after getting engaged at the Houston Zoo during Holland's first birthday party.
Erica welcomed her baby girl into the world with ex-boyfriend Galen Gentry in September 2016.
Erica and Galen began dating in November 2015, and she revealed she was expecting her first child with the lawyer in February 2016. They never got engaged or married, however, and Erica told E! News in September 2017 they had split.
But then Charles, whom she's known since high school, came back into her life like a sudden flame. Their romance sparked after Erica messaged Charles on Bumble.
"[Charles] moved back to Houston from Miami around the same time [I did]. We ran into each other at one of our family's charity events for a Kentucky derby party and we literally have been inseparable since," Eric revealed at the time.
Eric previously told Us Weekly she fell in love with her now-husband when they took a vacation to Aspen, CO, together in August 2017.
"Holland was having altitude sickness and he took care of her," Erica recalled. "I never told a guy I loved him first in my entire life, but I said it then. We were going to bed and I told Holland I loved her and then I said to Charles, 'I love you too.' And he said it back."
Erica reportedly said last year it felt "so good" to actually "find true love," especially with someone she's known half of her life.
Erica initially vied for the affection of Lorenzo Borghese on The Bachelor's ninth season. She then competed on the second and third editions of Bachelor Pad and later appeared on VH1's You're Cut Off! reality series.