Way to go, Rob Kardashian!

The newly engaged reality star, 29, is working hard to shed the pounds — and with the help of his fiancée, Blac Chyna, 27, Rob currently weighs 248 pounds and is about to embark on a five-week weight loss journey.

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rob kardashian scale snapchat

Rob shared a video from his first training session, captioned, “Chy is training me.”

https://www.instagram.com/p/BD4XecOJWcc/

Ideally, the once-reclusive Kardashian would like to get down to between 200 and 210 pounds in time for Blac’s birthday on May 11.

The couple announced their engagement on Tuesday.