Period Calculator - Track Your Menstrual Cycle and Predict Your Next Period - Sirona (2024)

Period Calculator - Track Your Menstrual Cycle and Predict Your Next Period - Sirona (1)

At Sirona, our period cycle calculators help you keep track of your menstrual cycle, and provide predictions of the start and end dates of periods and also days when your ovulation is most likely to occur. So predict your next period now with Sirona’s high-quality menstrual cycle calculator!

What is a period calculator?

A period calculator is a tool which helps women keep track of their menstrual cycle. From calculating your next period date to when you’ll be ovulating, these menstruation period calculators anticipate your period so you can feel fresh and prepared every day of your menstrual cycle.

How does a period calculator work?

If you’re a newbie to a menstruation period calculator and want to know how to calculate your period cycle, we’ll help you out. Follow the below steps and learn how to use a period calculator online:

  • The first step is to download Sirona’s app, click on the ‘track periods’ tab and it’ll redirect you to WhatsApp chat.
  • Type Hi on the chat, it’ll give you 3 options and choose ‘track my periods’ from those.
  • Then the chatbot will ask you your goal: track periods, try to conceive or avoid pregnancy.
  • Choose the ‘Track periods’ option and then choose between the 2 options: My cycle is regular and My cycle is not regular.
  • Then type basic details like your period length, cycle length, age, and last period date.
  • The chatbot records all your data and sends you reminders and upcoming cycle dates as per your goal.
  • Wait for a few seconds and it’ll fetch the results for you: fertile window, ovulation on, next period date, last period start date and cycle length.

Benefits of using a period calculator
Here are a few benefits of using a period cycle calculator :

  • It helps you know when to expect your next period and gives you the freedom to make plans and when to have pads or tampons in your bag.
  • A period calculator helps you identify any irregularities in your menstrual cycle which may need any sort of medical assistance.
  • It is a great way to track your period date and help women monitor fertility and identify their most fertile days for people looking to conceive or avoid pregnancy.
  • A period calculator helps women identify their patterns in menstrual symptoms such as headaches, and cramps which helps them manage their symptoms effectively.
  • The best thing about a period tracker is it helps you monitor your overall reproductive health and identify issues that may require medical attention and care.

What is the Menstrual Cycle?
A menstrual cycle is a part of your reproductive system that prepares your body for possible pregnancy and starts when you start to get periods. It is a natural process that occurs in women where the lining of the uterus is shed through the vagin* for several days. It is also known as periods or menstruation generally occurs once a month, although the length of a menstrual cycle can vary from person to person.

What are the signs of your period coming?
Changes in the body occur during different phases of your menstrual cycle. You can anticipate your period coming with a menstruation period calculator and notice those changes yourself. Here are some signs that’ll allow you to understand your period coming:

  • Bloating: If progesterone levels in your body are lowered, it causes water retention causing bloating before menstruation.
  • Breast tenderness: A hormonal spike in the menstrual cycle causes breast tenderness.
  • Cramps: During menstruation, the uterus sheds its lining which causes mild to severe cramps to happen before and during periods.
  • Mood swings: Premenstrual syndrome causes emotional and physical body changes such as food cravings, and irritability which can also lead to more cases such as severe anxiety and depression.
  • vagin*l discharge: An increase in progesterone levels causes white or cloudy vagin*l discharge before menstruation.
  • Acne: A few women also experience acne often seen as red bumps on the face due to fluctuations in hormones.

What are the Signs Of the Period Coming Late?

Late periods are common but concerning for any woman. Here are some signs of your period coming late:

  • Pregnancy: Pregnancy can be one of the most obvious signs of your late periods. Home tests can help you confirm if you’re pregnant or not.
  • Weight changes: Sudden weight changes can delay periods so you should consult a doctor or nutritionist if needed.
  • Stress: If you’re suffering from chronic stress, it can disrupt your hormonal balance and cause a late period. To treat this, relaxation techniques may be your rescue.
  • Medical conditions & medications: Certain medical conditions like PCOS, Diabetes, thyroid issues etc. can affect your menstrual cycle and cause late periods.
  • Perimenopause: Delayed periods before the menopause phase which is called ‘Perimenopause’ usually starts in women in their 40s.

Planning for pregnancy using a period calculator

Isn’t it great to know the days you’re most likely to be fertile!?

This increases your chance of getting pregnant.

You can use Sirona’s menstruation period calculator to know the best time to get pregnant. You can do this by:

  • Open Sirona’s app and go to the ‘track periods’ tab.

  • Choose your query ‘trying to conceive.

  • Type basic details like regular or irregular periods, period length, cycle length, age, and last period start date and it’ll fetch out the results for you.

  • You get to know your fertile window and ovulation date.

The menstrual cycle is a natural process of the body that’s an important aspect of reproductive health. You can manage your menstrual and overall health better by using our trusted period calculator to keep track of your menstrual cycle and the body’s reaction to it. Also, always remember every woman’s body is unique and varies depending on their stress levels, age, lifestyle and underlying medical conditions.


Q: How do I calculate my period?

The best and easiest way to calculate your period is with the help of Sirona’s period calculator.

Q: When is the next period due?

You can calculate your next period due date with Sirona’s period calculator.

Q: How to use period calculator?

Below are the steps on how to use a period calculator:

Download Sirona’s app and click on the ‘track periods’ tab

After this, it will redirect you to WhatsApp chat and you have to type Hi to start the chat.

Type a few basic details like period length, cycle length, age, and last period start date and it will provide you with results.

Q: How to calculate my period date if my cycles are irregular? Identifying patterns in your menstrual cycles is the first step to determining whether you have irregular periods. You can also track your ovulation time to decide the next period date. You can use Sirona’s period calculator to know when you’re ovulating, which helps in the calculation of the ovulation period in irregular periods and determines an approximate date of your next period.

Period Calculator - Track Your Menstrual Cycle and Predict Your Next Period - Sirona (2024)


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