Blac Chyna has something to get off her chest about Rob Kardashian.

The 28-year-old reality says she's ready to reveal how she "truly" feels about her 29-year-old fiance in an cryptic Instagram post on Thursday.

"I have some things I want to get off my chest about how I truly feel about Rob," Chyna shared with her 10.4 million followers, but she has yet to reveal what's truly on her mind.

WATCH: Blac Chyna Debuts Long Blonde Dreadlocks: See the Bold New Look!

Earlier this week, the couple looked pretty cuddly on Snapchat and on Thursday she tagged Rob in her latest sexy photo shoot.

MORE: Blac Chyna Posts Sexy Bedroom Shots Amid Kardashian Trademark Lawsuit News

While there is no telling how long fans will be waiting for Chyna's major announcement, viewers can relive the birth of her daughter, Dream, when the Rob & Chyna Baby Special debuts Sunday, Dec. 18 at 8 p.m. ET/PT on E!

For more on the baby's birth, check out the emotional clip below.