Start date of pregnancy: how to know it

Calculating the start date of pregnancy is a crucial element for future mothers. This information is not only important for planning the medical follow-up of the pregnancy, but also for determining the probable date of delivery. However, the calculation can sometimes be confusing and complex for some women. In this article, we will provide clear and precise information on the different methods of calculating the start date of pregnancy, in order to help future mothers better understand this important stage of their life.

How to calculate the start date of pregnancy?

For calculate the start date of pregnancy, we must take into account the first day of the last period and add approximately 14 days (average duration of ovulation) to estimate the date of ovulation and therefore the probable date of fertilization. The pregnancy then begins from this date. It is important to note that these calculations are based on an average menstrual cycle length and may vary from one woman to another. An early ultrasound can also help confirm the exact start date of pregnancy.

What are the symptoms of early pregnancy?

Early pregnancy symptoms can vary from woman to woman, but the most common signs are:

• Late periods or absence of periods;
• Nausea and vomiting;
• Fatigue and drowsiness;
• Breast tenderness and swelling;
• Mild abdominal pain or cramping;
• Frequent urge to urinate;
• Increased basal body temperature.

To try to get the date of your possible delivery, you can use an online calculator or do the calculation manually by adding 280 days (40 weeks) to the date of the last day of the menstrual cycle to estimate your due date. For example, if the first day of your last cycle was January 1, you can expect a due date around October 8 (280 days after January 1). However, it is important to note that the due date may vary slightly depending on individual fetal development.

When can we know the start date of pregnancy?

The start date of pregnancy can be calculated from the first day of the woman’s last menstrual period. This date is used to estimate gestational age and determine the expected date of delivery. However, it is important to note that this method is only an estimate and the exact date of conception may vary slightly.

Is it possible to have a miscarriage before pregnancy is confirmed?

Indeed, it is possible to have a miscarriage before the pregnancy is confirmed. This can happen when the implantation of the embryo in the uterus does not take place correctly and the embryo does not develop normally. In this case, the woman may experience bleeding that can be confused with normal periods.

How do you know if you are pregnant without taking a pregnancy test?

It can be difficult to know if you are pregnant without taking a pregnancy test. However, here are some early signs, which we have already mentioned previously, which can alert you:

• Absence of periods (especially if you have regular menstrual cycles);
• Nausea and vomiting;
• Fatigue ;
• Breast tenderness or swelling;
• Changes in mood or appetite.

It is important to note, however, that these symptoms can also be caused by other factors, such as stress or hormonal problems.

What you must remember

In conclusion, calculating the start date of pregnancy is an important step in monitoring the progress of the pregnancy and planning medical appointments. There are several methods to calculate this date, but the most common is the one based on the date of the last menstrual period. It is recommended to consult a health professional to confirm this date and ensure that the pregnancy is progressing normally. Once the start date of pregnancy has been calculated, it is important to follow medical advice carefully to guarantee a peaceful and complication-free pregnancy.