Pregnancy Week Tracker estimates how far along a pregnancy is from the first day of the last period, or from a due date you already have. It then points to that week’s guide and a short list of what people typically do next. No signup. The dates stay in this browser.
Vinod Isaac
Founder · Bengaluru · father of two
I built this after sitting through two pregnancies and watching every “tracker” demand an account before it would show a week. I am a product builder, not a clinician. The site is the tool I wanted in the waiting room: instant, private, and honest about what it cannot do.
The calculator uses the same 280-day (40-week) count from the first day of the last menstrual period that clinics use as a starting estimate — Naegele’s rule, described in ACOG’s methods for estimating the due date. If you enter a due date instead, it counts backward from that date.
An estimated due date is not a deadline. Only a small share of babies arrive on that exact day. An early ultrasound, irregular cycles, or IVF dating can change the number. Your clinician’s date is the one that matters for care.
Each week page is a general educational summary: typical size comparisons, common notes, and practical prep. Size photos use household objects as a visual aid. They are not ultrasound images and they are not a growth chart for your pregnancy.
Kick counting and contraction timing on this site are stopwatches. They do not diagnose labour, reduced movement, or anything else. If movement changes or you are worried, contact your maternity unit — do not wait on a webpage.
Calculator results can be saved in localStorage on your device so a kick counter or week page can remember the last week you ran. Nothing is uploaded to our servers for that. Analytics and ads, if they load, are separate third-party scripts.
If the tracker saved you from another signup form, you can help keep it running.
Support via PayPalQuestions or corrections: contact page or vinodjamesisaac@gmail.com.