Rose and her fiance Galen Gentry have announced they're expecting a daughter in September, E! News reported.
"We are so excited to be having a baby girl," the couple told E! News of their first child together.
Rose, who is known for being a girly-girl and wearing tiaras, said, "Now I finally have someone to hand my tiaras down to! The next step will be designing a dream princess nursery: all pink everything!"
Although they haven't announced a date, Rose and Gentry are reportedly planning their wedding on top of preparing for the baby's arrival.
Rose revealed she's pregnant on February 1. Around that time, she said Gentry never officially popped the question but they still considered themselves engaged.
The former Bachelor Pad contestant and Gentry began dating in November after meeting at work. Rose is the director of business development for Gentry's Gentry Law Group law firm.
"They fell in love at first sight! She was really ready to have a baby and they started trying," Rose's representative told E! News last month.
"Erica's family is super excited. When Erica's father heard the news, he said he wanted to throw a big Texas wedding! Though no plans are confirmed yet. They are really looking forward to the new addition to the family."
Rose 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.