IUI Due Date Calculator
Find your estimated due date after IUI, and see how far along you are today.
Awaiting Data
Enter your details and tap Calculate to see your results appear here.
Your result appears here.
What it measures
Intrauterine insemination places sperm near the egg on the day you ovulate. That timing makes the due date easy to estimate, since the IUI date sits very close to conception. Counting forward 266 days lands on the expected birth.
This tool also tracks how far along you are right now, in weeks and trimester. Want to plan ahead? Pair it with our Pregnancy Calculator and Due Date Calculator.
How to use this calculator
- Enter the date of your IUI procedure.
- Tap Calculate for your estimated due date.
- Read your current week and trimester below.
The formula used
- IUI date
- The day of the procedure.
- 266 days
- Length of pregnancy from conception.
Understanding Your Results
Tips to Improve
- Book your first scan to confirm dating.
- Start a prenatal vitamin with folate.
- Track symptoms week by week.
- Share the date with your care team.
Reading your IUI timeline
Your due date marks one day, yet birth rarely lands on it. Most babies arrive within two weeks either side, so read the date as a centre point. A first ultrasound, usually near week 8, confirms or fine tunes the count. From there the weeks unfold in a steady rhythm you can follow.
Milestones help you plan. Early on, lean into folate, rest, and gentle movement. By the second trimester, energy often returns and scans map your baby's growth. Track each stage with our Pregnancy Calculator, and revisit fertile timing through the Ovulation Calculator.
Why IUI dating is reliable
Natural cycles hide the exact day of conception, so doctors count from the last period and adjust later. IUI removes that guesswork. Since insemination happens at ovulation, conception sits within a day, and the 266 day count holds firm. For more on dating methods, the American College of Obstetricians and Gynecologists keeps clear guidance.
Frequently Asked Questions
Very close, since the IUI date marks conception. A first scan refines it.
Pregnancy runs about 266 days from conception, or 280 from the last period.
Yes. An early ultrasound may adjust it by a few days.
Scientific References
- American College of Obstetricians and Gynecologists. (2017). Methods for estimating the due date. Committee Opinion 700.
- National Institutes of Health. (2023). Intrauterine Insemination.