Pregnancy Calculation

Pregnancy calculation helps expectant mothers better monitor their pregnancy process. The gestational week and estimated due date, calculated based on the last menstrual period, ensure accurate tracking of the pregnancy. Knowing how many weeks pregnant they are is very important for expectant mothers during this period. So, how is pregnancy calculated, and what are the ways to accurately determine the gestational age?

Pregnancy calculation is a method used to determine when a woman became pregnant and to estimate the due date. These calculations are usually based on the last menstrual period (LMP). Here are some basic facts about pregnancy calculation:

The pregnancy duration is calculated based on the first day of the last menstrual period (LMP). It typically lasts an average of 40 weeks (280 days). However, this duration can vary in each pregnancy.

Pregnancy week can also be confirmed by ultrasonography. Ultrasound performed especially in the first trimester is highly reliable for accurately determining the pregnancy week. Ultrasound measurements determine the gestational age based on values such as the crown-rump length (CRL) of the baby.

There may be a difference between the ultrasound pregnancy week and the last menstrual period. In this case, your doctor will determine the most accurate gestational age and inform you accordingly.

The baby's development changes week by week during the pregnancy process. Here are the trimesters of pregnancy and the baby's development:

• 1st Trimester (Weeks 1-12): Organ formation begins. The baby's heartbeat can be seen by ultrasound.
• 2nd Trimester (Weeks 13-26): Baby movements can be felt. There is a chance to learn the gender.
• 3rd Trimester (Weeks 27-40): Growth accelerates. The lungs develop and preparations for birth begin.

Knowing the exact pregnancy week is important for the following reasons:

• Determining the estimated time of birth
• Monitoring the baby's development
• Planning the timing of tests during pregnancy
• Organizing prenatal care and check-ups

1. Note Your Last Menstrual Period (LMP): Pregnancy is calculated from the first day of your last menstrual period.

2. Go Back 3 Months: From the first day of your last menstrual period, go back 3 months.

3. Add 7 Days: Add 7 days to the date you found to calculate your estimated due date.

   For example, if the first day of your last menstrual period is April 1st, going back 3 months and adding 7 days results in an estimated due date of January 8th.

Pregnancy duration is generally calculated from the first day of the last menstrual period. From this date, it is considered to be 40 weeks (280 days).

To determine the estimated due date, you can follow these steps:

• Take your last menstrual period date.
• Add 280 days (or 40 weeks) to this date.

• If your last menstrual period is January 1, adding 280 days to January 1 will give you an estimated due date of October 7.

Pregnancy usually occurs during the ovulation period, which is when ovulation takes place. For women with regular menstrual cycles:

• In a woman with a 28-day menstrual cycle, ovulation typically occurs 14 days after the start of menstruation.

There are many online pregnancy calculation tools available. These tools allow you to easily calculate your estimated due date and pregnancy week by entering your last menstrual date.

It is important to attend regular doctor check-ups to obtain more accurate information about your exact pregnancy date and condition. Doctors can provide more precise dates through ultrasound scans.

During pregnancy, there are many ways to monitor your pregnancy and maintain your health. Regular check-ups, a healthy diet, exercise, and necessary vitamin supplements will support your pregnancy health.

A Life Health Group, which supports you at every stage of your pregnancy, offers accurate pregnancy monitoring with expert obstetricians and modern ultrasonography devices.

At our hospital, you can benefit from services such as pregnancy calculation, ultrasonography, and childbirth preparation. You can safely follow your pregnancy process by making an online appointment and receive support from our specialist doctors.