Lucy said she lost the first one shortly after Carole Lombard passed, which was in 1942. Her comment about "being busy for 5 years" could've meant in terms of her movie making, not losing babies. Like I said, Lucy would know best how many babies she lost, she said she lost two and had two. I don't know why people care about the exact years she lost them, we know it happened because she said it herself. I mean, we don't need to know EVERYTHING about the woman, especially personal stuff like this. JMO.
Edited to add: Kathleen Brady is an idiot. She had so many facts wrong in her book and put a lot of unfounded rumors and scandalous crap in there as facts. So I would take anything she has to say with a grain of salt.