Pregnancy Conception Calculator
Calculate conception date based on your due date or last menstrual period
Calculation Results
How Pregnancy Dating Works
Pregnancy is typically calculated from the first day of your last menstrual period (LMP), even though conception usually occurs about two weeks later. This is because it's often difficult to know the exact date of conception, but the LMP is usually known.
A full-term pregnancy is about 40 weeks (280 days) from the LMP. Conception typically occurs around day 14 of a 28-day cycle, which is about 266 days before the due date.
** Unlock the mystery of your baby’s origins and accurately determine your conception date, due date, and gestational age with America’s most trusted pregnancy conception calculator. This innovative tool has helped thousands of expecting parents nationwide plan their pregnancy journey with confidence and precision, making it the go-to resource for accurate pregnancy dating and conception tracking.
Our advanced **pregnancy conception calculator** utilizes sophisticated algorithms to calculate your conception timeline based on two reliable methods: using your due date to work backward to conception or calculating forward from your last menstrual period (LMP). This powerful **conception date calculator** takes the guesswork out of pregnancy planning, providing you with precise dates for conception, estimated due date, and current gestational age in weeks and days. Whether you’re actively trying to conceive or recently discovered you’re pregnant, this comprehensive **pregnancy calculator** delivers instant, reliable results that help you understand your pregnancy timeline better than ever before.
The accuracy of our **pregnancy conception calculator** makes it an essential tool for every expecting parent across the United States. By simply entering your due date or last menstrual period, you’ll receive detailed information about your baby’s development timeline, including the exact conception window that brought your precious miracle to life. This invaluable **conception calculator** has become viral among pregnancy communities because it transforms complex calculations into easy-to-understand results, helping you bond with your growing baby from the earliest moments. Join the millions of parents who have made this revolutionary **pregnancy calculator** their number-one resource for tracking one of life’s most beautiful journeys – share this amazing tool with every expecting couple you know!