Did Gloria Henry become pregnant while on Dennis the Menace?

Alongside such topics as politics, divorce, death in the family, violence, and getting terminal, pregnancy was generally a taboo plot device for family type situation comedies. I don"t recall a character named Gloria Henry. Henry Mitchell was Dennis' dad, the Mother, was Alice. ( in the story line) There were only a handful of exceptions to the pregnancy taboo for sitcoms (Laura Petrie in the Dick VanDyke Show, Lucy in I Love Lucy were a couple that worked) and these came out late in the sixties- Sergeant Carter and Gomer Pyle assisted a pregnant woman in an episode of Gomer Pyle ( not usual USMC fare, one adds)- It was used as a plot device later on My Three sons ( alienating much of the audience, and some others). These were sitcoms but not juvenile in the usual sense.