Williams, 37, confirmed her engagement to McKinley when she showed off her baby bump in a curve-hugging red dress. In the snap, a massive diamond ring could be seen on her engagement ring finger.
"Feed off of good energy or bad energy will feed on you," she captioned the photo.
RadarOnline.com previously reported that McKinley is expected to propose to Williams while filming.
"Porsha is going to get engaged on camera for the show," the source said. "She's going to get a ring from Dennis and it's going to be while she's filming."
The insider added how producers want to capture the special moment for her.
"They love Porsha and they want everybody to share in the big news," the source said.
Williams' former co-star Kenya Moore is also expecting her first child. Moore got fired from the series because she hid her marriage to husband Marc Daly and her pregnancy from producers.
"Porsha is not at all like Kenya," the source said. "She is loving sharing everything with the show and with her fans. And she wants to get engaged on camera."
Us Weekly was the first to confirm the engagement.
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