Conceived on Cinco de Mayo? Here's the Due Date
If conception happened on Cinco de Mayo (May 5), the baby would be due around January 26 the following year.
| Conception date | May 5 |
|---|---|
| Estimated due date | January 26 |
| Likely due window (37–42 weeks) | January 5 – February 9 |
| Last period probably started | April 21 |
Remember that sex and conception aren't always on the same day: sperm can survive for up to five days, so a holiday celebration could lead to conception a few days later.
Check your own dates with the due date calculator.
Due Date Calculator: Estimate your due date from the first day of your last period.
Open the calculatorThis article is general information, not medical advice. Talk to a doctor or midwife about your own pregnancy or fertility.