Meghan McCain knew it would be odd to unveil her latest pregnancy during a sit-down interview with a White House figure. She went for it anyway. The 40-year-old TV personality,formerly of "The View"and daughter of late Republican Sen. John McCain, turned the spotlight on herself during a conversation with Second Lady Usha Vance, revealing on Tuesday that she is expecting a baby boy as her third child. "I wanted to let you in on something that is private that I haven't talked about publicly yet," McCain tells Vance in asocial media clippromoting their conversation, which is set to publish in full on Wednesday. McCain praises Vance and husbandVice President JD Vancefor "how you incorporate your children in your life in so many ways" before dropping her news: "I am just entering my second trimester. I am pregnant with my third." The Second Lady offers a quick congratulations to the provocative conservative panelist. Read more:Sen. Padilla claps back after JD Vance calls him 'Jose': 'He knows my name' McCain continues: "I know this is a weird way to announce it but ... I'm very nervous about — it's a boy. I'm very nervous about having a boy. And I'm very nervous about having three children. Very." The media personality, after voicing her concerns and referencing supposed "horrible data" about raising three children, finally offers Vance a prompt, though it's self-serving. "I wanted to know if you could share with me and women in American why having three kids is good," McCain says, "how you manage three kids, and any advice for boy moms." The Second Lady and Vice President Vance share three young children: sons Ewan and Vivek, and daughter Mirabel. McCain, in addition to her incoming son, shares two young daughters, Liberty and Clover, with her husband, TV commentator Ben Domenech. In short, Vance told McCain that her experience raising three kids includes the children forming their own "pack" and the eldest child taking on responsibility. Vance also informed McCain that she thinks the development timeline between boys and girls is "really different." Read more:Arellano: 'We're all just a bunch of Josés': Vance's dig at Padilla is a new low Before McCain broke the news of her pregnancy, she spoke onInstagramabout having the "distinct privilege" of conducting the Second Lady's "first ever long form interview on camera." McCain said in her caption, "we get into it all," and dubbed Usha Vance an "iconic American figure." Get notified when the biggest stories in Hollywood, culture and entertainment go live. Sign up for L.A. Times entertainment alerts. This story originally appeared inLos Angeles Times.