Menstrual Period Calculator And Calendar

Written by Moksha Gandhi image Moksha Gandhi BPharm, Mumbai University, Mumbai linkedin_icon Specialty: Health & Wellness Experience: 2 years

Moksha is a health and wellness writer and a certified diet and nutrition coach. Her passion for science and writing has helped her excel in crafting evidence-based articles. Her previous experience in writing science-based research papers ensures th... more

, BPharm, Mumbai University, Mumbai  • 

The menstrual period or menstruation is vaginal bleeding that is a part of a woman’s monthly cycle. This occurs when the egg is not fertilized. The body sheds the endometrium (the lining of the uterus), causing bleeding. The bleeding lasts for three to five days. The menstrual cycle is a series of changes that occur in a woman's body as part of the preparation for a possible pregnancy. It is a cycle that usually begins between 12 and 15 years and continues until menopause, which, on average, occurs at the age of 52.

  • Last Menstrual Period:
  • Menstrual Cycle Length :
  • How Many Days Did It Last:

Menstrual Calendar

Lmp Date :
Your Cycle :
Period Last Days :
Next Period BeginsEndsFertility BeginsOvulationDue date
(If Pregnant)
Fertild Days  Fertile Days- Medium Chance Of Pregnancy
Ovaulation Day   Ovulation day - Highest Chance Of Pregnancy
   Period Days - Probably Infertile
  Safe Days- Low Chance of pregnancy

How To Calculate The Menstrual Cycle

Menstruation typically occurs in 28-day cycles, and most women get their period every 28 days. In some cases, it ranges between 21 days to 40 days and differs from woman to woman.

A menstruation or period calculator determines when your next period is due based on a 28-day menstrual cycle. All you need to do is enter the date when your last menstrual bleeding began, and the calculator will tell you when to expect your next period.

How Do I Calculate When My Next Period Will Be?

The period tracker or period predictor can help you track your menstrual cycle and answer the question ‘When is my next period due’? You need to enter the starting date of a period in a month.

The period tracker calculates the average length of your past three menstrual cycles, which would help in predicting the start date of your next period. Once three months have been logged, this ‘next period’ calculator can predict your future period dates, calculate your ovulation and fertile days, and also predict your moods and symptoms in a month-view calendar.

How To Calculate How Many Days Between Periods?

With the period calculator, you can always be prepared for your upcoming period and know in advance when you will be ovulating. You will not be surprised when it’s that time of the month as the period calculator ensures you know exactly when to expect your next period.

Keeping monthly track of your period and other symptoms help the calculator determine when you are ovulating and anticipate your period, so you can feel fresh and prepared every day of your menstrual cycle.

Why Is It Important To Track The Menstrual Period?

It is important to track your menstrual period as you don't want to be caught unprepared. Tracking periods can help you plan your lifestyle, fertility period, vacation, social, or work-related activities too. It can help women with PCOS and endometriosis take better account of their irregular cycles so that they can report to their doctors with more accuracy about the changes in their cycles.

One of the first signs of pregnancy is a missed period, so it makes sense that keeping track of a cycle can help you be aware of a possible pregnancy sooner. If you are trying to get pregnant, being aware of your cycle is a helpful tool for predicting ovulation , which is when you are most likely to get pregnant if you are not on birth control.

How Many Days After Your Period Do You Ovulate?

One of your ovaries will release an egg (ovulation) about 14 days before your period starts. The first day of your period, when you start bleeding, is counted as the first day of your cycle. If you have a 28-day cycle, you will usually ovulate some time between Day 10 and Day 15 of your cycle. As your period lasts for 3 to 5 days on an average, the ovulation is effectively 6 to 11 days of completion of your period.

You are most fertile at the time of ovulation (when an egg is released from your ovaries), which usually occurs 12 to 14 days before your next period starts. This is the time of the month when you are most likely to get pregnant. It is unlikely that you will get pregnant just after your period, although it can happen. The safe period is the duration of a few days just before and just after your period. The safe period calculator helps you predict the safe period.

How Long Do Periods Last?

Most periods vary in terms of flow (maybe light, moderate, or heavy), and the length can vary from about 2 to 7 days. With age, the cycle usually shortens and becomes more regular.

Frequently Asked Questions

What factors may affect a woman’s menstrual cycle?

Stress, weight gain, smoking, birth control pills and hormonal changes may affect a woman’s menstrual cycle (1).

Can you speed up your menstrual cycle?

Yes, anecdotal evidence suggests that sex or exercise may help speed up menstrual cycle and make periods come earlier. Certain prescription drugs can also help speed up the menstrual cycle.

How to track your period manually?

You can track your period manually by keeping a note of the start and end of your menstrual cycle each month. You can use a notebook or a calendar for this purpose. After doing this over a few months, you may begin to notice the unique length of your menstrual cycle and get better at predicting when your next period is due.


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