# A Wegovy tracker built around the sixteen-week climb

Updated 23 August 2026 · Written by the Penwise team

Wegovy is the same molecule as Ozempic on a different schedule: five dose steps, four weeks each, sixteen weeks before you reach the maintenance dose. Most of what people want to know – is this working, is it worth the nausea, should I hold here – is a question about that climb, and it is unanswerable without a record of it.

## The ladder, and why it takes four months

The standard Wegovy titration is 0.25 mg weekly for four weeks, then 0.5 mg, then 1 mg, then 1.7 mg, then 2.4 mg as the maintenance dose. Four weeks per step is not arbitrary: semaglutide has a half-life of about seven days, so a new dose takes roughly four to five weeks to reach a stable level. Step up sooner and you are climbing while the previous step is still rising underneath you, which is where a lot of avoidable nausea comes from.

| Weeks | Weekly dose | What is usually happening |
| --- | --- | --- |
| 1 to 4 | 0.25 mg | A starting dose rather than a treatment dose. Side effects, if any, tend to be at their sharpest in the first fortnight. |
| 5 to 8 | 0.5 mg | The first dose most people feel properly. Appetite change is usually obvious by now. |
| 9 to 12 | 1 mg | Often the point where weight loss becomes steady rather than initial. |
| 13 to 16 | 1.7 mg | A step some people find harder than the ones before it. |
| 17 onwards | 2.4 mg | Maintenance. Some people stay at 1.7 mg, or lower, on clinical advice. |

The usual schedule. Your prescriber may move you faster, slower, or hold you at a step indefinitely – track what you were actually on, not the plan. See [dose schedules and titration](https://penwiseapp.com/en/guides/glp-1-dose-schedule).

Penwise records the schedule you are on, including the steps you held longer, the ones you skipped and the weeks you went backwards. When a dose is late it stays visible as late. When you changed strength, the change is dated, so a later question about “when did it stop working” has an answer rather than a guess.

## Two pens, and the one that surprises people

Wegovy ships in two designs depending on where you are. The single-dose pen is one shot and done. Outside the US there is a four-dose FlexTouch pen, and its behaviour changes with the strength you were dispensed.

|  | Single-dose pen | FlexTouch (4 doses) |
| --- | --- | --- |
| Doses in the device | 1 | 4 |
| Strengths | 0.25 to 2.4 mg | 0.25 to 2.4 mg |
| Volume injected | 0.5 ml, rising to 0.75 ml at 1.7 mg | 0.37 ml at 0.25 and 0.5 mg, 0.75 ml above |
| Days usable once started | used at once | 42 |

Every FlexTouch strength is its own concentration, so a fixed volume delivers a different dose on each. This is why a click count from one strength is meaningless on another.

That last row is the one that catches people out. Six weeks is not four weekly doses plus a buffer – it is four doses with two weeks of slack, and if you skip a week or hold a dose the discard date can arrive with liquid still in the pen. Penwise counts the 42 days down alongside your remaining doses and tells you which clock runs out first.

## Reading weight against dose, not against the calendar

The single most useful thing a Wegovy tracker does is put the weight trend and the dose history on the same timeline. Almost every question people bring to a forum is really a question about that overlay.

- Did the loss slow down because the dose plateaued, or four weeks earlier for another reason?
- Was the drop after the last increase the increase, or the week you could not eat?
- Is this a real [plateau](https://penwiseapp.com/en/guides/glp-1-weight-loss-plateau), or two weeks of water weight over a trend that has not changed?
- Has the appetite effect faded at this dose, or did the food noise come back on a specific day of the week?

Penwise keeps weight, body fat, lean mass, waist and resting heart rate alongside the dose log, with a goal weight and progress against it. If you weigh on a scale that talks to Apple Health or Health Connect, the numbers arrive on their own.

## Side effects through the climb

Wegovy side effects cluster around dose increases rather than spreading evenly. The first fortnight of a new step is where nausea, reflux and constipation are most likely, and for most people each step is easier than the fear of it.

Penwise tracks twenty named side effects on a 0 to 5 scale and nine sliding measures including appetite, fullness and food noise, then looks for the timing across your own history rather than a generic curve. It only reports a pattern when it has enough of your data to stand behind it. [The side effect timeline](https://penwiseapp.com/en/guides/glp-1-side-effects-timeline) covers what tends to land when.

## Where you are in the week

Semaglutide is a long-tailed drug: about a seven-day half-life, so a weekly dose never fully clears before the next one. Penwise+ estimates the level from your logged doses, which is what makes the difference between “my shot was Tuesday” and “the average level is still climbing, four weeks into this step”. The arithmetic is explained in [how long semaglutide stays in your system](https://penwiseapp.com/en/guides/how-long-does-ozempic-stay-in-your-system).

> The curve is a model built from published pharmacokinetics, not a measurement, and Penwise never uses it to recommend a dose.

## The appointment, and the report

Wegovy prescribing usually comes with reviews, and reviews go better with a record. Penwise+ produces a dated PDF with your dose history, weight trend, adherence and recorded side effects, which you can hand over or send ahead. There is a clinical-standard export as well, and free CSV and JSON export of everything.

## None of it leaves your phone

There is no account, no sign-in and no Penwise server that receives health data. A weight-management history is about as personal as a log gets, and the safest design is the one where we never have it. The only things that leave the device are files you export yourself: a backup is always encrypted on the phone with a passphrase we do not hold, while a CSV, JSON or PDF export is a readable file you choose where to send.

**Track the whole climb, from 0.25 to 2.4** Free core tracker, no account, nothing sent anywhere. Fourteen days of Penwise+ included, no card needed.

## Common questions

**Is there a free Wegovy tracker?**

Yes. Logging doses, weight, injection sites, pain, cravings and notes is free forever in Penwise, along with the calendar, reminders and full CSV and JSON export. Penwise+ adds estimated medication levels, insights, health-platform sync and PDF reports, with a fourteen-day trial that needs no card and no account.

**How long does the Wegovy titration take?**

The standard schedule is four weeks each at 0.25, 0.5, 1 and 1.7 mg before reaching the 2.4 mg maintenance dose, so sixteen weeks in total. Prescribers vary it, and some people stay at a lower dose permanently. Penwise tracks the schedule you are actually on rather than the ideal one.

**How long can I use a Wegovy FlexTouch pen once I start it?**

The four-dose FlexTouch is labelled for 42 days of use after the first injection. The single-dose pen has no in-use period because it is used once. Penwise counts the window down and warns you when your remaining doses would outlast it.

**Can I track Wegovy and my weight in one app?**

Yes, and that is the point. Weight, body fat, lean mass, waist and resting heart rate sit on the same timeline as the dose history, so the trend can be read against the dose you were on rather than against the calendar.

**Does Penwise handle Wegovy tablets as well as pens?**

Yes. Oral semaglutide is a first-class route in the app: choosing an oral dose hides the injection site and pain fields, because they do not apply, and the daily cadence replaces the weekly one. See [tracking Rybelsus and oral semaglutide](https://penwiseapp.com/en/guides/rybelsus-tracker).

**Does my Wegovy data go to a server?**

No. There is no Penwise account and no server for health data, so nothing is uploaded and there is nothing for us to hold, sell or lose. Backups are encrypted on your device with a passphrase only you have.

## Sources

Every factual claim on this page traces to the product information a regulator publishes, or to a published trial. Links open on the site of whoever issued the document.

- [Wegovy: EPAR product information](https://www.ema.europa.eu/en/medicines/human/EPAR/wegovy), European Medicines Agency
- [Once-Weekly Semaglutide in Adults with Overweight or Obesity (STEP 1)](https://doi.org/10.1056/NEJMoa2032183), New England Journal of Medicine, 2021
- [Semaglutide and Cardiovascular Outcomes in Obesity without Diabetes (SELECT)](https://doi.org/10.1056/NEJMoa2307563), New England Journal of Medicine, 2023

Penwise is a tracking and education tool, not a medical device. Nothing on this page is medical advice, a diagnosis or a recommendation to start, stop or change a dose. Dosing decisions belong to you and your clinician. Ozempic, Wegovy, Rybelsus, Saxenda and Victoza are trademarks of Novo Nordisk; Mounjaro, Zepbound and Trulicity are trademarks of Eli Lilly. Penwise is not affiliated with, endorsed by or connected to either company.

## Keep reading

- [How long does Ozempic stay in your system?](https://penwiseapp.com/en/guides/how-long-does-ozempic-stay-in-your-system): Semaglutide has a seven-day half-life, so it clears over about five weeks and doubles on itself before it settles. What that means week by week.
- [Mounjaro vs Wegovy: two weekly injections, two different drugs](https://penwiseapp.com/en/guides/mounjaro-vs-wegovy): Both are weekly, both are for weight, and they are not the same molecule. The head-to-head trial, the dose ladders, the pens and what actually changes for you week to week.
- [GLP-1 dose schedules: every ladder, and why the steps are four weeks](https://penwiseapp.com/en/guides/glp-1-dose-schedule): The titration ladder for every GLP-1 product side by side, and the pharmacology that decides how long each step has to last.
- [A Shotsy alternative, and how to bring your history with you](https://penwiseapp.com/en/guides/shotsy-alternative): What Penwise does that Shotsy does not, what it costs instead, and the guided import that brings your shots, weights and side effects across.