DUE DATE CALCULATOR

Your 'due date' will often be referred to as the 'estimated date for delivery' ('EDD') or 'estimated date for confinement' ('EDC') as it is precisely that, an estimate. Did you know that there is still only a 5% chance you baby will be born on its EDD even if the EDD is accurately calculated from the day they were conceived. It is normal and healthy for babies to be born at any time from about 37 to 42 weeks of the pregnancy. Babies born less than 37 weeks are regarded as 'premature' and babies born later than 42 weeks are regarded as 'overdue'.

Some healthcare professionals use 'Naegele's rule' to calculate a baby's due date. Naegele based his calculation on the woman having a 28 day menstrual cycle. Therefore, if you have a 28 day cycle and you know the date of the first day of your last normal period, you can use Naegele's rule to calculate your baby's due date, which is:

• 9 months + 7 days after the first day of your last normal menstrual period (or 280 days after this day).

If you don't have a 28 day cycle you will need to adjust your EDD by first using Naegele's rule and the first day of your last menstrual period to find the date, then add or subtract the appropriate amount of days, depending on your cycle.

• If you have a 26 day cycle you would subtract 2 days from the Naegele's estimated due date
• If you have a 32 day cycle you would add 4 days to the Naegele's estimated due date

Cenovis^® Due Date Calculator

Enter the first day of your last normal period:
How many days are in your cycle:	25 26 27 28 29 30 31 32 33 34 35 To work out how many days are in your cycle, count how many days there usually are from the first day of your period to the day before your next period starts.