When is my baby due? To help you find this special date, Hegde Fertility brings you a simple, accurate, and patient-friendly Pregnancy Due Date Calculator Online. Just enter the first day of your Last Menstrual Period (LMP) and let the tool estimate your baby’s arrival date.
Understanding how your due date is calculated can bring a sense of clarity and confidence during your early pregnancy journey.
The most common method is based on your Last Menstrual Period (LMP).
Doctors usually calculate your due date by: LMP + 280 days (40 weeks)
This formula estimates when your baby will likely be born assuming a 28-day menstrual cycle and ovulation occurring around day 14.
What this means for you:
• You are considered 4 weeks pregnant when you miss your period.
• The calculation includes the two weeks before ovulation, even though pregnancy technically begins at conception.
Other medical methods:
• Early ultrasound dating scan
• Conception date (if known)
• Assisted Reproductive Technologies (IVF / ICSI)
– Hegde Fertility calculates exact embryo transfer dates for IVF pregnancies.
No matter which method applies to you, your doctor will confirm it during your first scan.
At Hegde Fertility, we believe pregnancy tools should be easy, accurate, and stress-free. Here’s how the calculator works.
Based on LMP — Last Menstrual Period
If you enter the first day of your last menstrual period, the calculator estimates your due date using the standard 40-week pregnancy model.
Assumes a 28-day menstrual cycle
The tool works best for women with a regular 28-day cycle.
If your cycle is longer or shorter, the actual due date may shift a little.
A due date is an estimate, not an exact prediction.
Here’s what you need to know:
Only about 5% of babies are born on their exact due date. Most babies arrive between 37–42 weeks.
What affects accuracy?
• Irregular menstrual cycles
• Late ovulation
• Uncertain LMP dates
• First-trimester ultrasound measurements
• IVF conception (more accurate)
Most accurate method:
First-trimester ultrasound (6–9 weeks)
This scan measures the Crown-Rump Length (CRL) and gives one of the most reliable estimates.
So while calculators give a helpful starting point, your doctor will confirm details during your scans.
Yes, your due date can change—this is completely normal and nothing to worry about.
Your doctor may adjust the date if:
• The early scan measurements don’t match the LMP-based date
• You have irregular periods
• You ovulated earlier or later than usual
• You conceived through fertility treatments with precise dates
At Hegde Fertility, our specialists always ensure that your due date is clinically accurate, depending on your baby's growth and overall pregnancy health.
Waiting to take a pregnancy test can feel emotional and overwhelming. Here’s a clear guide to help you:
Home Pregnancy Test (Urine Test):
• You can take it 1–2 days after your missed period
• For most women, this is around 14 days after ovulation
Blood Test (Beta hCG Test):
• Detects pregnancy earlier
• Can be taken 10–12 days after ovulation
• Highly accurate
• Often used in IVF pregnancies at Hegde Fertility
Pregnancy is a journey filled with joy, excitement, questions, and emotions. At Hegde Fertility, we walk with you at every step—supporting you, guiding you, and celebrating your milestones.
Whether you conceived naturally or through fertility treatment, your baby’s due date marks the beginning of a beautiful chapter filled with hope and happiness.
Our team of best fertility specialists in Hyderabad is here to provide compassionate care, accurate information, and complete medical support throughout your pregnancy.
Your journey matters. Your baby matters. Your happiness matters.
Delivering care from basic treatments to the most advanced fertility solutions
