When to Conceive a Baby to Share John Lennon's Birthday
John Winston Ono Lennon was an English musician, songwriter and activist. He gained global fame as the founder of the Beatles, in which he was the co-lead vocalist and played rhythm guitar, later adopting lead and bass guitar, keyboards and other instruments.
Plan a Baby Born on John Lennon's Birthday (October 9)
How to Plan a Baby for John Lennon's Birthday (October 9)
If you dream of your child sharing a birthday with John Lennon on October 9, the optimal conception date is around January 17 of the preceding 38-week gestation cycle (266 days before birth).
Use the interactive slider above to adjust the gestation period between 35 and 41 weeks and observe how the conception timing match (%) and clinical delivery window probabilities change in real time.
When Was John Lennon Conceived?
John Lennon was born on October 9, 1940. Based on the standard human gestation period of 38 weeks (266 days from ovulation/conception), he was most likely conceived around January 17, 1940.
While only about 4%–5% of babies arrive on their exact due date, nearly 60% are born within a ±7-day window around their target date when conceived during the peak 5-day fertile window.
More Positive Icons Born in October
Explore other inspiring figures who share the same birth month and conception season.
Film & Acting
Hugh Jackman
Film & Acting
Ryan Reynolds
Film & Acting
Matt Damon
Film & Acting
Julia Roberts
Film & Acting
Joaquin Phoenix
Film & Acting
Julie Andrews
Film & Acting
Sigourney Weaver
Film & Acting