Pregnancy Tracker — Week by Week
Watch your baby grow from week 4 to 40. Enter the first day of your last period and instantly see your due date, your baby’s size, weekly milestones, common symptoms and nutrition tips.
Trying to conceive? Use our Ovulation Calculator to find your best days to get pregnant.
Used to calculate gestational age and due date.
Enter your LMP date to begin
Your last menstrual period date lets us calculate your baby’s gestational age and show you week-by-week development.
Everything you need, every week
Baby size & weight
Length, weight and a friendly fruit-size comparison for every week.
Development milestones
What is forming this week — heartbeat, fingers, hearing, kicks and more.
Nutrition guidance
Foods to eat more of and foods to avoid, tailored to each stage.
Due date & countdown
Your estimated due date and the number of days left, from your LMP.
Frequently asked questions
How does the pregnancy tracker calculate my week and due date?
Enter the first day of your last menstrual period (LMP). Gestational age is counted from that date, and your estimated due date is calculated as 280 days (40 weeks) later — the standard method used by doctors worldwide.
Is the pregnancy tracker free to use?
Yes. The week-by-week tracker is completely free and needs no sign-up. Create a free First OPD account if you would like to save your progress across devices and book OPD visits with gynaecologists.
What will I see for each week of pregnancy?
For every week from 4 to 40 you get a fetal development video, your baby’s approximate size and weight, a fruit-size comparison, the key milestone for that week, common symptoms, and nutrition tips on what to eat and what to avoid.
Is this a substitute for seeing a doctor?
No. The information is educational and based on average pregnancy milestones. Always consult your doctor or midwife for advice personalised to your pregnancy. You can book a gynaecologist through First OPD directly.
Expecting? Book your OPD visit on First OPD
Find verified gynaecologists, book appointments or join the live queue, and keep your pregnancy and health records in one secure place.