Apparently, Blac Chyna celebrates pregnant with a trip to Burger King!

The soon-to-be baby mama of fiance Rob Kardashian, Chyna hit up her favorite fast food drive-thru this afternoon, after she and Rob officially announced the former stripper's pregnancy to the world.

She already has a child with Tyga -- Rob's sister's boyfriend, of course -- named King Cairo, but this little bun in the oven's going to be the true prince! Heir to the Kardashian empire, this tiny tyke is going to have silver spoons and 24-karat gold toilets for potty training -- it'll be nothing but the best for Kris' youngest grandchild. Move over, Saint!

Our intrepid videographer peppered Chyna with questions as she order her Whopper with fries, but Mrs. Kardashian wasn't talking. She just took selfies in the car and prepared to chow down. Hey, Angela K can do whatever she pleases now that she's locked it in with Rob -- good move, girl!