Pregnancy Calculator
Estimate Your Due Date and Pregnancy Week Online.
Use Apollo Hospitals' Pregnancy Calculator to estimate your expected delivery date (EDD), current pregnancy week, and trimester based on the first day of your last menstrual period (LMP) or conception date. This tool can help you understand your pregnancy timeline and prepare for important antenatal milestones.
A Pregnancy Calculator is a simple tool that helps estimate how far along a pregnancy is and predicts the expected due date (EDD). It is commonly used by obstetricians and expectant parents to monitor pregnancy progress and plan antenatal care.
Pregnancy is usually calculated from the first day of the last menstrual period (LMP), even though conception typically occurs about two weeks later.
The calculator provides an estimate of:
- Current pregnancy week
- Current trimester
- Expected delivery date (EDD)
- Key pregnancy milestones
While the calculator provides useful guidance, actual delivery dates may vary. Most babies are born within a few weeks before or after the estimated due date.
(Weeks 1–13)
This is a critical stage of fetal development when major organs begin forming.
Common experiences may include:
- Nausea and vomiting
- Breast tenderness
- Fatigue
- Increased urination
- Mood changes
Regular antenatal visits and folic acid supplementation are especially important during this stage.
(Weeks 14–27)
Often considered the most comfortable phase of pregnancy. During this period:
- Energy levels may improve
- Fetal movements become noticeable
- The baby continues rapid growth and development
Routine anomaly scans and prenatal assessments are typically conducted during this trimester.
(Weeks 28–40)
The baby continues to gain weight and mature in preparation for birth. Expectant mothers may experience:
- Back pain
- Heartburn
- Swelling of feet
- Sleep disturbances
- Increased pelvic pressure
Regular antenatal monitoring becomes increasingly important during this stage.
The estimated due date is an approximation rather than a guarantee.
Only a small percentage of babies are born exactly on their due date. Most healthy pregnancies deliver within a few weeks before or after the calculated date.
Mothers
For Indian women, routine antenatal care plays a critical role in reducing pregnancy-related complications.
Regular screening for:
- Anaemia
- Gestational diabetes
- Pregnancy-induced hypertension
- Thyroid disorders
- Nutritional deficiencies
can help improve maternal and fetal outcomes.
In addition to due date estimation, maintaining a healthy diet, taking prescribed supplements, and attending scheduled antenatal visits remain essential throughout pregnancy.
Heartbeat may be visible on ultrasound.
First-trimester screening is typically performed.
Detailed anomaly scan helps assess fetal development.
Screening for gestational diabetes is commonly recommended.
Final birth planning and preparation discussions usually begin.
Through Pregnancy
estimation. Our multidisciplinary maternity teams provide
comprehensive support throughout every stage of pregnancy.
During Pregnancy?
Seek medical advice if you:
- Have uncertain pregnancy dating
- Experience vaginal bleeding
- Develop severe abdominal pain
- Notice reduced fetal movements
- Have persistent vomiting
- Develop swelling, headache, or elevated blood pressure
- Have diabetes, thyroid disease, or other chronic medical conditions
- Are carrying multiple babies
- Have previously experienced pregnancy complications
Regular antenatal care remains important even when no symptoms are present.
A Pregnancy Calculator estimates your expected due date and pregnancy week based on your last menstrual period or conception date.
The calculator provides an estimate. Early pregnancy ultrasound often provides the most accurate pregnancy dating.
A typical pregnancy lasts approximately 40 weeks from the first day of the last menstrual period.
Yes. Healthcare providers may adjust your due date based on ultrasound findings, especially in early pregnancy.
An ultrasound examination can help determine gestational age and estimated due date.
No. Most babies are born within a few weeks before or after the estimated due date.
IVF pregnancies are generally dated using embryo transfer dates, and your fertility specialist may provide a more precise due date.
Most women should schedule an antenatal appointment soon after confirming pregnancy. Early prenatal care supports healthy maternal and fetal outcomes.
Routine tests may include blood investigations, ultrasound scans, gestational diabetes screening, thyroid assessment, and other evaluations recommended by your obstetrician.
Get expert maternity and antenatal care support from Apollo Hospitals.
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