It helps her to be physically as well as mentally prepared and also to keep a track on the progress of her delivery. The due date is important as it tells the date of your delivery. Hence, when you deliver on the due date as mentioned by the calculator, your baby will be 38 weeks old and not 40 weeks.Īn expectant mom eagerly waits for the arrival of the baby. It should be noted that your ovulation and menstrual cycle is counted as the first two weeks of pregnancy. When you click on ‘calculate date’, calculator adds 280 days (40 weeks) to the first day of your last menstrual cycle. The calculator will then analyse your due date. If you need to know your due date, choose the date of the first day of your last period from the drop down menu and click ‘calculate date’.
Due date calculator conception how to#
How to use pregnancy due date calculator?Ī normal pregnancy usually lasts for 37 to 42 weeks.Look at your predicted period for September, then input that date into the calculator above to see your predicted due date. For example, if you want a June baby you will need to get pregnant in September. After a few months of inputting data, these apps can predict when your period will start each month and you can use this date to determine your theoretical due date. This is when it can be helpful to use an app like Flo or Natural Cycles to map your periods and ovulation. There are many reasons why you might like to plan what month your baby will be born, such as work commitments or working around your other children. Aim to have your labour bags packed and everything set up by 36 weeks just to be safe.Ĭalculating the perfect time to get pregnant Look at it as a guide for when you should be ready for your baby to be born. Only 5% of babies are born on their due date, so don’t put too much emphasis on this exact day. So most pregnancies last 40 weeks or approximately 38 weeks from conception. With these reasons in mind, healthcare providers use your last menstrual period (LMP) as this is a definite date. Sperm can live inside your body for up to 5 days and the egg can survive for up to 24 hours after being released.
Conception may not have happened on the day you had sex. However, this is a natural process so the actual day ovulation occurs can vary. In theory, your cycle is 28 days long with ovulation occurring on day 14. Your menstrual cycle doesn’t work like clockwork. It’s impossible to know which occasion was successful. If you were actively trying for a baby then you may have had unprotected sex every second day throughout the month. Many women don’t know the date they conceived. Most healthcare providers will estimate your baby’s due date based on the date you started your last period rather than the date you conceived for many reasons: Why is my pregnancy measured from my last period? Reasons for this may include not knowing the actual date of your last menstrual period, irregular periods or having your first scan in the second trimester. It’s common for your estimated due date to be changed as your pregnancy progresses. Read more about our Early Pregnancy Scans, or make a booking. Our estimated due dates are generally within 3 – 5 days of accuracy when measured during the first 12 weeks of pregnancy. We use your baby’s measurements, in conjunction with the date of your last menstrual period to give you an estimated due date. Yes, our Early Pregnancy Scans are also referred to as Dating Scans for this reason. If you can’t wait to find out your EDD, visit us in UltraScan where we perform Early Pregnancy Scans (or Dating Scans) from just 8 weeks.Ĭan an Early Pregnancy Scan determine my due date? You’ll receive a much more accurate Estimated Due Date (EDD) when you have a scan. If your cycle is irregular then it will be more difficult to estimate your Due Date using dates alone. Remember, these are just estimations based on a 28-day menstrual cycle. Once you enter the date of your last menstrual period, the calculator will tell you your estimated Conception Date (when you actually got pregnant) and your estimated Due Date. Or instead of all the counting, enter the date of your LMP into the calculator above! You can also subtract 3 months from the date your last period began, then add 7 days. Most pregnancies last about 40 weeks, so you can get an idea of your due date by counting 40 weeks, or 280 days, from your last menstrual period (LMP). Our Due Date Calculator is here to help you estimate when your little one will be arriving.
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