The mathematical view
If you're 9 weeks pregnant, your estimated due date (EDD) is about 31 weeks away, meaning your delivery day is typically around 40 weeks from your last period, or approximately 38 weeks from conception, placing it about 40 weeks from your last menstrual period (LMP) date, so you'll likely deliver around 31 weeks from now, with a full-term window of 37-42 weeks.
To find your specific date, add 280 days (40 weeks) to the first day of your last period, or use an online calculator by entering your LMP, but remember this is an estimate, with only about 5% of babies arriving exactly on time.
How to Calculate Your Due Date
Find the First Day of Your Last Period (LMP): This is the most common starting point for calculations.
Add 280 Days (40 Weeks): A typical pregnancy lasts 280 days from the LMP.
Alternative (Naegele's Rule): Subtract 3 months from your LMP, then add 7 days and one year.
From 9 Weeks Pregnant:
You have about 31 weeks left in your pregnancy (40 weeks total - 9 weeks already passed).
Your due date will be approximately 31 weeks from today, assuming your pregnancy started on a typical cycle.
Important Considerations:
Estimated: Due dates are just estimates; only about 5% of babies are born on their exact due date.
Early Ultrasound: An early ultrasound (around 12 weeks) provides the most accurate dating for your pregnancy.
Full-Term: A pregnancy is considered full-term between 37 and 42 weeks.
For a personalized date, use an online due date calculator by entering your last menstrual period.
To find your specific date, add 280 days (40 weeks) to the first day of your last period, or use an online calculator by entering your LMP, but remember this is an estimate, with only about 5% of babies arriving exactly on time.
How to Calculate Your Due Date
Find the First Day of Your Last Period (LMP): This is the most common starting point for calculations.
Add 280 Days (40 Weeks): A typical pregnancy lasts 280 days from the LMP.
Alternative (Naegele's Rule): Subtract 3 months from your LMP, then add 7 days and one year.
From 9 Weeks Pregnant:
You have about 31 weeks left in your pregnancy (40 weeks total - 9 weeks already passed).
Your due date will be approximately 31 weeks from today, assuming your pregnancy started on a typical cycle.
Important Considerations:
Estimated: Due dates are just estimates; only about 5% of babies are born on their exact due date.
Early Ultrasound: An early ultrasound (around 12 weeks) provides the most accurate dating for your pregnancy.
Full-Term: A pregnancy is considered full-term between 37 and 42 weeks.
For a personalized date, use an online due date calculator by entering your last menstrual period.
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