Pregnancy guides
Clear answers to the questions every expecting parent searches for — and how the Lunera pregnancy tracker helps with each one.
How many weeks pregnant am I?
How pregnancy weeks are counted, why week 1 starts before conception, and how to find your exact week and day from your last period, conception date, or due date.
Read the guide → Due dateDue date calculator: three ways to find your due date
Calculate your due date from your last menstrual period, conception date, or ultrasound estimate. How the 40-week rule works and how to count down the days.
Read the guide → Baby growthBaby size by week: from poppy seed to watermelon
How big is your baby this week? Week-by-week baby size comparisons — poppy seed at week 4, banana at week 20, watermelon at week 40 — with typical length and weight.
Read the guide → TrimestersPregnancy trimesters explained: which weeks are in each?
When does each pregnancy trimester start and end? First trimester weeks 1-13, second 14-27, third 28-40 — with what to expect in each and how to track your progress.
Read the guide → LaborHow to time contractions (the right way)
Learn how to time contractions correctly: duration vs. frequency, what the numbers mean, when patterns matter, and how a contraction timer app does it with one tap.
Read the guide → LaborThe 5-1-1 rule: when to go to the hospital
The 5-1-1 rule explained: contractions 5 minutes apart, lasting 1 minute, for 1 hour. How to recognize the pattern, exceptions to know, and how an app can detect it for you.
Read the guide → LaborBreathing exercises for labor: staying calm through contractions
Simple breathing exercises for labor: how paced 4-4 breathing works, why slow breathing helps during contractions, and how to practice with a guided app before the big day.
Read the guide → iPhonePregnancy widgets for iPhone: your week on the lock screen
Put your pregnancy week, baby size, and due date countdown on your iPhone home screen and lock screen. How pregnancy widgets work and how to set them up in minutes.
Read the guide → PricingPregnancy apps without a subscription: what to look for
Tired of pregnancy apps demanding monthly subscriptions? What subscription apps really cost over nine months, and what a one-time purchase pregnancy tracker offers instead.
Read the guide → PrivacyPrivate pregnancy tracker: keeping your data on your phone
Most pregnancy apps share sensitive data with third parties. How to choose a private pregnancy tracker: local-only storage, no account, no analytics, no ads.
Read the guide →Put the answers on your home screen
Lunera tracks your week, your baby's size, and your contractions — free, private, and subscription-free.