Following a pregnancy is mostly about knowing where you are. Week by week, Tymi shows your baby’s estimated size and weight, what is forming next, and what is changing for you. Appointments, the mid-pregnancy scan, the hospital bag and contraction timing all sit in one place, with no account to create.
| Trimester | Weeks of pregnancy | What you log there |
|---|---|---|
| First | 1 to 13 | current week, symptoms, first appointments and first scan |
| Second | 14 to 27 | estimated growth, mid-pregnancy scan, weight, first kicks |
| Third | 28 to birth | hospital bag, baby list, contraction timer, birth preparation |
| What you notice | What official guidance says | What Tymi does |
|---|---|---|
| Contractions getting closer together | they start short and far apart — about every ten minutes — then come closer, five minutes then less, and become regular: that is the phase during which you go in (French health service) | the timer shows the average length and the average gap of your last contractions |
| Contractions every 5 minutes or more often | call your midwife or maternity unit for guidance (NHS) | a calm line appears once the average gets close — it says to call, never to leave |
| Your waters break | go to the maternity unit even if contractions are not yet strong (French health service); the NHS lists it among the urgent calls | the emergency tab dials the country’s emergency number, or the maternity unit you saved, in one tap |
| Bleeding, your baby moving less than usual, under 37 weeks, any contraction longer than 2 minutes, or 6 or more contractions every 10 minutes | call urgently, do not wait until the next day, even in the middle of the night (NHS) | nothing to time: this is the moment to call, not to measure |
| What you are wondering | What official guidance says | What Tymi does |
|---|---|---|
| When will I feel my baby move? | between 16 and 24 weeks; with a first baby, sometimes only after 20 weeks. If you have felt nothing by 24 weeks, the NHS asks you to tell your midwife, who will check your baby’s movements and heartbeat | nothing to switch on: the movement counter is an optional tool, opened whenever you want it |
| How many kicks should I count a day? | no number is expected. The NHS writes that there is no set number of movements and that you do not need to count them each day: what matters is knowing your own baby’s usual pattern | a “count to ten movements” session records the start time and how long it took, for you — no target, no alert, no score |
| My baby is moving less, or differently | call your midwife or maternity unit immediately, even in the middle of the night, without waiting for the next day (NHS). Never reassure yourself with a home doppler: hearing a heartbeat does not mean your baby is well | nothing to time: the emergency tab dials the number you saved, in one tap |
| How much weight will I gain? | it varies a great deal. Most women gain between 10 kg and 12.5 kg, most of it after week 20 (NHS); the UK publishes no target figure by body type | a curve of what you log and the total since the start — never a goal to hit, never a notification |
| Should I lose weight while pregnant? | no. With a BMI of 30 or above, the NHS asks you not to try to lose weight during pregnancy: it will not reduce the chance of complications and may not be safe. What protects you is attending every antenatal appointment | no diet advice, no score, no message about your weight |
| The question | What the NHS says | What Tymi holds for you |
|---|---|---|
| When do classes start? | usually 8 to 10 weeks before your baby is born, once a week for about 2 hours. NHS antenatal classes are free — ask your midwife, health visitor or GP | the dates in your appointments, and a reminder before each one |
| What do they cover? | diet and exercise in pregnancy, what to expect in labour, how to relax, the different birth methods and interventions, looking after your newborn, and how you might feel during and after the pregnancy | nothing to revise: the preparation tool names the methods and the day-of techniques, and describes each in one line |
| Can a partner come? | you can choose classes just for pregnant women, or classes that welcome a partner or a friend; some are run specifically for single mothers or for teenagers | you can record who is supporting you at the birth — midwife, doctor, doula, traditional birth attendant, family, or undecided — and the list of tips adjusts to that choice |
| Is hypnobirthing worth it? | it combines deep relaxation, breathing, visualisation and self-hypnosis, can be used alongside pain relief and added to your birth plan. The NHS is explicit that it does not stop unexpected things happening, and that a birth without intervention can never be guaranteed | no method is recommended and no outcome is promised — the tool lists, it does not advise |
| Second baby — is it still useful? | you may still benefit from refresher classes, especially if there is a big gap between pregnancies | the previous pregnancy stays readable in the same app, alongside the new one |
Frequently asked questions
How do you track a pregnancy week by week?
The usual reference is gestational age, counted from the first day of your last period. From your due date, Tymi works out the current week and shows your baby’s growth, the checks due that trimester, and the matching nutrition guidance.
What do the fruit size comparisons actually mean?
They are an image, not a medical measurement — a way to make a few centimetres feel real. Tymi’s figures follow standard fetal growth curves, but every baby grows at their own pace, and only a scan gives a reliable measurement.
When should I start timing contractions?
As soon as they repeat and become regular. The “5-1-1” rule is widely repeated but no health authority publishes it: the NHS asks you to call your midwife or maternity unit when contractions come every 5 minutes or more often, without waiting for a full hour of them. Tymi’s timer works out frequency and duration while you breathe; it does not decide when you leave. Call urgently if your waters break, you bleed, your baby moves less than usual, or you are unsure.
How many antenatal appointments should I expect?
It depends on the country. WHO recommends at least eight antenatal contacts for an uncomplicated pregnancy, and the NHS publishes the schedule for its own appointments. Tymi lets you log yours and reminds you; it never sets one for you.
Does Tymi replace my maternity notes?
No. It is a memory aid: dates, the measurements you log, the questions to ask at your next visit. Your medical care stays with your midwife or doctor, and so do the official records.
What happens to the app after birth?
The same profile switches to baby mode: feeds, sleep, diapers, measurements, plus a postpartum section for you. Nothing to reinstall, nothing to re-enter, and the pregnancy history stays readable.
Is the “5-1-1” rule official guidance?
No. You read it everywhere — contractions every 5 minutes, lasting about 1 minute, for 1 hour — but neither the NHS nor the French health service publishes it. The NHS asks you to call your midwife or maternity unit as soon as contractions come every 5 minutes or more often, without waiting for a full hour of them; the French health service describes the same moment, when they come closer together and turn regular. Tymi shows a line once the average of your last contractions gets close to that rhythm, and that line tells you to call, not to leave.
What goes in the hospital bag, and when should it be packed?
The NHS suggests packing about three weeks before the due date — only 1 baby in 20 arrives on the due date — and publishes the list: birth plan and maternity notes, loose comfortable clothes for labour, front-opening nightwear if you plan to breastfeed, maternity pads, a wash bag, snacks and a water bottle; for the baby, bodysuits and sleepsuits, a hat, mittens and socks, nappies, and a car seat for the trip home. Tymi starts from a generic list of fourteen items in three groups — you, baby, documents — that you tick and extend with your own lines.
Does the kick counter tell me my baby is fine?
No, and that matters. The NHS writes that there is no set number of movements to expect and that you do not need to count them every day: what matters is knowing your own baby’s usual pattern. Tymi’s counter is a notebook — the start time and length of a “count to ten movements” session, kept on the device — and nothing more. If movements slow down, stop or change, the NHS and the RCOG ask you to call your midwife or maternity unit immediately, even at night: you call, you do not count first.
Does Tymi show a weight-gain range?
Only if you want one. The curve shows the weights you log and the total since the start. If you also enter your height and your pre-pregnancy weight, the app works out your starting BMI and shows an indicative total range, taken from the 2009 US Institute of Medicine reference — the only one published by starting BMI. The NHS publishes no target: it gives an order of magnitude, 10 kg to 12.5 kg for most women, most of it after week 20. Those figures describe averages; your midwife or doctor is the only person who can say what applies to you.
Can a baby list be brand-free?
That is Tymi’s choice. The list is organised by use — sleep, feeding, changing, clothing, bath, outings, health, nursery — with gentle quantity hints and a handful of items matched to local habits. No brands, no affiliate links, no shop: what you tick stays on the device.
Are antenatal classes free?
In England, NHS antenatal classes are free — ask your midwife, health visitor or GP for details; the NCT runs paid courses alongside them, including refresher courses. In France, the health service reimburses in full seven preparation sessions with a midwife or doctor, plus the early prenatal interview, which is now part of the required pregnancy schedule. Tymi logs your dates and reminds you; what you are entitled to is answered by your midwife, your doctor or your health service, never by the app.
Which method of childbirth preparation should I pick?
Not a question for an app, and Tymi recommends none. The preparation tool names them and describes each in one line — classes, sophrology, haptonomy, prenatal yoga, water preparation, prenatal singing — then lists what helps on the day: breathing through contractions, moving and changing position, leaning on whoever is with you, knowing your pain-relief options. The list adapts to the country, because these methods do not exist everywhere. The choice belongs to you and your midwife or doctor.
This page gives general information. Tymi is not a medical device and does not replace advice from a midwife, doctor or pediatrician.
Sources
- NHS — Pregnancy week by week
- NHS — Your antenatal appointments
- WHO — Recommendations on antenatal care (2016)
- NHS — Signs that labour has begun
- NHS — Hospital bag checklist
- Assurance Maladie (ameli.fr) — How labour and birth unfold
- NHS — Your baby’s movements
- RCOG — Your baby’s movements in pregnancy (February 2019)
- NHS — Weight gain in pregnancy
- NHS — Obesity and pregnancy
- NHS — Antenatal and hypnobirthing classes
- Assurance Maladie (ameli.fr) — Becoming parents: early prenatal interview and preparation sessions (updated 2 June 2026)
Sources checked on 2026-09-27.