What information is needed to use pregnancy calculator week by week accurately?

[safinaali]

To use a pregnancy calculator week by week, you need key details like the first day of your last menstrual period (LMP) or the date of conception. This helps estimate your due date and track each stage of your pregnancy. Some calculators may also ask for cycle length to improve accuracy. With this information, the tool can provide weekly updates on fetal development and changes in your body, making it a helpful guide for expecting mothers throughout their pregnancy journey.

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