A funny video has emerged of a couple announcing that they are pregnant while taking a family portrait in Reno, NV, USA.

The footage, shot on February 5, shows the soon-to-be grandparents' reactions when the father says: "on three everybody say 'Kelly is pregnant'."

"The news is even more exciting because the pregnant woman has endometriosis, but was still able to naturally conceive," they told Newsflare.