Know Your Flow
Cycle Tracker and Shopping Guide
Everyone's flow is different, and knowing yours makes choosing the right period underwear so much easier. This free tool tracks your cycle, predicts your next period, and builds a personalised shopping guide based on your actual flow rate, so you always have the right pairs on hand.
How to use it
- 1 Enter your last period start and end date in the settings card below.
- 2 Tap Day 1 on the calendar, then log your flow rate for that day in the Daily Log card. Repeat for each day of your period.
- 3 Select your preferred underwear style or styles. Tick all the cuts you like to wear.
- 4 Once all period days are logged, open the bundle tab to see a day-by-day breakdown and your total pairs needed for the full cycle.
- 5 Tap + on any recommended product to build your shopping list, then tap Shop Now to head to the Eco Period store.
Know Your Flow · Cycle Tracker
Welcome
Set your last period date below to get started
Your cycle settings
Settings and logs saved to this device. Come back any time.
Cycle length
28days
Period started
Period ended
When your next period starts, archive this cycle and begin a fresh one.
Add past cycles Build up your history to unlock cycle insights
Period started
Period ended
Sun
Mon
Tue
Wed
Thu
Fri
Sat
Daily log —
Flow
Symptoms
Mood
Your preferred styles (select all that apply)
△
Bikini
▭
Boyshort / Boyleg
▲
High Waist / Full Brief
⌄
G-String
▫
Midi Brief
☆
Teen styles
Phase tip
Set your period start date above and we'll give you tips matched to each phase of your cycle.
Picks based on your flow
Log your flow for each period day to see matched products
Tap a product name to shop. Tap + to add to your bundle. All links open in a new tab.
How to work out how many pairs you need
To build your perfect kit, tap each day of your period on the calendar above and select your flow rate for that day. Once you've logged all your period days, open the bundle calculator below to see a day-by-day breakdown and a total pairs recommendation matched to your flow. Then add your favourite styles to your bundle and shop in one go.
Tip: Most people wash every 1 to 2 days, so you can halve the total if you're happy to wash regularly. If you want a full cycle's worth without washing, the total pairs number is your guide.
How many pairs do you need?
Based on your logged flow rate for each day of your period.
Items you've added
Total$0
Browse all period underwear at ecoperiod.com.au ↗
Opens in a new tab. Come back here to keep shopping.
Understanding your cycle phases
Menstrual
Days 1 to 5 (approx)
Follicular
Days 6 to 13
Ovulation
Days 14 to 16
Luteal
Days 17 to end
Free cycle tips by email
Tips that follow your cycle
Get a gentle weekly email with what to expect each phase, what to wear, and how to feel your best. From Danielle, not a bot.
You're in, lovely! Your first tip is on its way. Danielle x
No spam, ever. Unsubscribe any time. Australian owned and operated.