Pregnancy Calculator

This calculator also predicts the dates on which you will complete the first and second trimesters of your pregnancy, so you can schedule your obstetrician's regular checkups. After you've double-checked the results, use the second calculator to predict the number of weeks you'll be pregnant for any future dates. This estimate can assist you in planning any special occasions that you may have with your family or friends. 

Follow the instructions below to fully explained how the calculator performs.

First, turn on the calculator and write down the last day of your menstrual period and the number of days in your menstrual cycle on the lines.

Second, if necessary, perform the extra calculations to determine your exact pregnancy stage. According to Women's Health magazine, a monthly cycle lasts on average 28 days, but it can be as short as 22 days or as long as 44 days in some cases.

Your menstrual cycle is taken into account by our revolutionary Pregnancy Calculator when calculating the conception or due date. In order to calculate the conception date or due date, the days of the menstrual cycle must also be known.

You can check the following below for a better understanding to calculate the pregnancy due date and for more topics by visiting the site called onlinecalculator.guide

Example for calculating the pregnancy date

1. Estimated due date (EDD) and gestational age based on 2 February 2022 as the first day of the previous menstrual period.

Solution:

Consider the problem, 2 February 2022 is the first day of the previous menstrual period.

The Estimated Due Date is 11/9/2022

Gestational Age Today is 9 week(s), 5 day(s) or 2.23 month(s) months.

Date of Conception 2/16/2022

First Fetal Heart Tones by Doppler: 4/20/2022 to 4/27/2022 (11 to 12 w)

End First Trimester: 5/4/2022

Blood Draw for Serum Integrated Screening: 4/13/2022 to 5/10/2022 (10 w to 13 w 6d )

Nuchal Translucency (NT) Ultrasound: 4/22/2022 to 5/13/2022 (11w 2d to 14 w 2d )

Quad Marker Screening: 5/18/2022 to 6/22/2022 (15 w to 20 w)

Best time to evaluate cervical length in a patient with risk factors. After: 5/25/2022 (16 w)

Best time for routine anatomy ultrasound: 6/8/2022 to 6/22/2022 (18 to 20 w)

Anti-D prophylaxis for women who are (RhD) Negative: 8/17/2022 (28 w)

Antepartum Fetal Surveillance in High-Risk Patients: 9/14/2022 to 9/28/2022 (32 to 34 w)

Screening for Vaginal and Rectal GBS colonization: 10/5/2022 to 10/19/2022 ( 35 to 37 w)

Elective Delivery May Be Scheduled for Singletons After 11/2/2022 (39 w).

FAQs on Free Online Pregnancy Calculator

1. Is the pregnancy calculator precise?

Ultrasounds provide you with a detailed picture of your baby's development and might help you figure out when you conceived. Based on the date of your last menstruation, an online calculator can determine when you conceived. This procedure isn't as precise as an ultrasound verification.

2. Why do pregnancy calculators include an extra two weeks?

If your menstruation is regular and lasts 28 days, and ovulation occurs on day 14 of your cycle on average, conception occurred about two weeks after the LMP. These two weeks are added to pregnancy for gestational age counting rather than trying to track ovulation or fertilization.

3. Why is the first day of the last period used to determine pregnancy?

Because a woman's body prepares for pregnancy every time she has a period, pregnancy is estimated from this day. Most women are pregnant for an average of 280 days, according to the LMP.

4. What is the formula used for the mensural cycle calculation?

When your cycles are irregular or much longer or shorter than 28 days, this method may provide a more trustworthy result than the LMP method.

due date = date of conception + 266 days.

5. When do doctors begin counting the weeks of pregnancy?

Starting on the first day of the mother's last menstrual period, the pregnancy is counted as 40 weeks. Your projected birth date is solely intended to serve as a reference. Babies will arrive when they are ready, so be patient.