The American model and entrepreneur. - Blac Chyna, is expecting her first baby with the  American television personality fiancé - Rob Kardashian. And the video vixen is not afraid to make it known to the public how much weight she gained during her pregnancy.

According to E News, on Saturday, the 28 year old model took on Snapchat and posted a video of her hopping on a digital scale - which reads 163.2 pounds. Then the glamour model was talking to King Cairo (Chyna and ex-boyfriend Tyga's 3 year old son).

Chyna shouted, "Let's see. Uh oh...Mommy gained 20 pounds!."

As stated in US Magazine, in the video, presumably shot inside Chyna's home, Chyna and her son snuggled up on the couch to watch TV, and a curious King asked her mommy Chyna about his soon-to-be baby brother or sister.

Chyna's son stated, "Is it a boy or a girl?," Rob's fiance chuckles and answered, "I don't know, what do you want it to be?"

Hollywood Life also reported that in another video posted by Chyna on Saturday, Chyna's son cuddles up to her and said "I'm squishing the baby?" The model replied, "No, you're not squishing the baby."

However, as Chyna and Rob unveiled the model's pregnancy earlier this month, just before Mother's Day, Chyna was body shamed on social media. But, the pregnant fiancé of the Kardashian retaliated online by saying, "To all you people out here with negative comments and insecure words (obviously for the reason that you have nothing else to do but criticize the next) I AM HAVING A BABY! Chyna added, "Exactly what do you expect to see? If I walked out in makeup and heels everyday to be beautiful to you means I WOULD BE MISERABLE AND UNHAPPY which are two vibes I refuse to transfer to my little one."