Pregnancy calculators enable you to know at what week of your pregnancy you are in. you can also work our when you conceived and your due date. Most expectant mothers would have an idea of how long they have been pregnant but a pregnancy calculator can help these mothers have a slightly more accurate idea. For those mothers who have no clue of when they might have conceived this is impossible and the pregnancy calculator becomes very important.
These pregnancy calculators will often as you for the first day of your last menstrual period. Using the date of the LMP, they can tell you when it is you most likely conceived and what the due date is. You must be aware that establishing the due date or the time of conception are not accurate and exact sciences; one of the reasons for this is that fertilization might not have occurred on the day of intercourse. In fact it is possible for sperm cells to survive in the ovary ducts for a number of days.
Pregnant mothers not only want to know when they will give birth or when they conceived out of curiosity, there may be far more practical reasons for doing this test. Prenatal paternity tests and baby genders tests can only be done after a specific time in pregnancy and thus, it becomes very important for pregnant mothers to make use of a pregnancy calculator to help them know the gestational age.
You could of course, make an appointment with your OBY/GYN for an ultrasound which will use fetal biometry (measurements of the size of your baby) to tell you how many months old the unborn child is. But this will require an appointment and may not be cheap – a pregnancy calculator is a more convenient, at-home option. To keep in mind that any calculations that are provided by a pregnancy calculator are estimates based on averages. They are not definite and accurate figures.