When you go to the doctor and you ask about the possibility to calculate your due date, you are going to be told that there is no formula that is 100% accurate. Even if this stands out as the first question that most couples ask, technology still did not evolve enough.

In most cases a full term is going to be of around 40 weeks but variations do appear because of many different factors. Before we talk about them, we should focus on how you can calculate your due date when signs of pregnancy appear.

Online And Offline Pregnancy Calculators

The great news for all couples is the fact that there are both online and offline pregnancy calculators. The offline ones are going to be available in pharmacies and the offices of the gynecologist. Online ones are available on many different websites. Both use the same way to calculate your due date and will take into account:

1. The date when your last menstrual period started.

2. The conception date – which is optional as not many people are aware of it.

3. The length of the regular period cycle that the woman has. Most women will have one of 28 days but there are differences that can appear.

What can trigger the birth before the due date?

Although you can nowadays calculate the due date and get pretty close to it, there are some factors that are going to have a negative impact on your signs of pregnancy and end up with a premature delivery. The full term of a pregnancy is of 37 weeks and if the baby is born too soon then you are faced with a premature birth. A doctor will tell you that various factors can cause this like:

  • Unhealthy eating habits
  • Cervical incompetence
  • Nutrition

What causes a late birth?

Most of the women will give birth after 37 weeks. In most cases the childbirth occurs between 38 and 42 weeks but this is not always the case. In most situations the first time mother will have the baby born after calculated due date. The problem is that a pregnancy that goes over 42 weeks is dangerous. In this case you can end up with perinatal death. A doctor will monitor this and will offer solutions if the pregnancy goes over this period.

Due dates are very important for any woman. This is because they allow them to do a couple of things. For starters, they can plan everything accordingly and be prepared for when the moment comes. Secondly, the expecting mom will always know when she needs to go to the doctor for an ultrasound. Unfortunately, there are some women that are not taking this into account. You should not be one of them.

Make sure that you are going to use a pregnancy due date calculator. We recommend that you use online calculators because of the fact that the can be used in the comfort of your own home and are not going to cost you a thing. This is very useful for many expecting mothers.