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How to calculate your period?
It is worth being prepared for your period. In order to estimate when it is due, you need to consider your average cycle length as well as the date when your last menstruation started and how long it lasted.
How period calendar works
Based on the data you have entered, you will receive estimates relating to your further periods and an upcoming fertile window.
Enter data
menstruation
fertile days
ovulation
Menstruation calendar Bella
is a free mobile application that will help you better control your cycle.
learn morePeriod symptoms
- At the beginning of a period, bleeding is heavier, but it becomes lighter towards the end.
- Abdominal pain appears usually on the first day of bleeding and can radiate to the lower back. Usually, the pain wears off over time.
- Gastric disorders – some women may suffer from various gastric symptoms, such as diarrhoea, constipation, nausea, and vomiting.
- Increased eruptions on the face and body (mainly chest) is caused by lower oestrogen levels, which makes skin dry and sensitive.
What causes fertile days to shift?
Remember that the ovulation calculator and observing your body do not guarantee precise calculation of your fertile window. There is a range of factors that may cause ovulation and fertile days to shift, such as:
– strong stress,
– illness in the first cycle phase and antibiotic use,
– heavy physical strain,
– diet and weight loss,
– climate change,
– sleep deprivation,
– general fatigue.
Explore the products show all
Menstruation calendar Bella
is a free mobile application that will help you better control your cycle.
learn more
Tips for teenagers
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Tips
for all
of us
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Tips in menopause
learn moreDispose wisely!
Soon, the following labelling will appear on the packaging of many hygiene products, such as sanitary pads, pantyliners, tampons or wet wipes:
