Couple from viral pregnancy video share miscarriage news on YouTube

Sam and Nia Rader swept the Internet off its feet in a viral video that showed Sam revealing to his wife that she was pregnant.

But just four days later the vlogging couple posted another video ... this time making a heartbreaking announcement together.

"It just, bam, it just hit us like a bomb. And those of you who have experienced miscarriage before, I can relate now. I have felt my womb empty out. I never ever ever knew that women felt that way."

The Texas couple, who have two children, usually post a video of their life on YouTube daily, but after their pregnancy announcement their site went silent for a few days until they came back with the devastating news.

Viewers expressed their remorse for the family.

One commenter wrote, "Each day they bring so much joy! ... this family is the most open and genuine of all [families] on the Internet and don't deserve this pain."

In the video description on YouTube, Sam and Nia write, "The hurt and pain is real. It's something that needs to be talked about and something that requires support from friends and family."

Recently, Mark Zuckerberg and his wife Priscilla also opened up about their experiences trying to conceive after they announced they were expecting.

Zuckerberg posted on Facebook that they had experienced three miscarriages before, saying, "Most people don't discuss miscarriages because you worry your problems will distance you or reflect upon you -- as if you're defective or did something to cause this. So you struggle on your own. In today's open and connected world, discussing these issues doesn't distance us; it brings us together. It creates understanding and tolerance, and it gives us hope."

Watch the original announcement that went viral: