How To Calculate Next Period Date

Q What To Expect From Momjunctions Period Calendar

How to calculate next period date and ovulation time? – Dr. Teena S Thomas

MomJunctions period calendar requires you to input the date of your last menstrual period date to calculate your monthly period. The date here refers to the starting date of the last period cycle, not the ending one.

The second input requires you to give the average length of time between your periods. Since the term varies from person to person, its not wise to assume the figure. You must be as accurate as possible to determine your most fertile days if you are planning to conceive.

Once youve shared the inputs, the period calculator will show you the result. It wont just give you a heads up on your next period start date for the next 12 cycles, but will tell you about your most fertile days and if you are late for your period cycle. Even if your period is delayed, you will know the next expected date of your period. This way, you can keep a track of the length of your menstrual cycle and the number of days it lasted.

Disclaimer:The period calculator provides the approximate dates by considering your regular menstrual cycle. If your menstrual cycles are irregular, the tool may have trouble pinpointing your day of ovulation or period. While period calculators are not 100% accurate, the menstrual cycle is still a very useful tool. MomJunction is not responsible for any associated deviations, failures or liabilities.

Do you have any question about the period calculator, menstrual cycle or any other related topic? Ask us in the comment section below!

Understand The Science Of Your Body

Get personalized insights when you log your symptoms and track your cycle in the Obie app.

If you are trying to get pregnant and you have regular spotting before your real period begins, we suggest that in addition to using the ovulation calendar, you also use the BBT and an ovulation detection tool in order to find out when you can get pregnant. If you have a lot of spotting, you might want to talk to your Ob-Gyn and assess your progesterone level shortly after presumed ovulation.

Period Or Menstrual Cycle Calculator

Menstruation is a process of shedding blood from the uterus that usually begins for women between the age of 11 and 14 years and continues till menopause. It indicates the start of a reproductive life in women. Menstrual cycle may range from 21 to 45 days. The average length of a cycle is 28 days. At the time of menstrual period, a woman may experience abdominal cramping, lower back pain, bloating and sore breasts, mood swings, irritability, headache and fatigue. Most women will have symptoms of premenstrual syndrome , which include emotional and physical symptoms that start one or two weeks before the menstrual period.

Period or Menstrual Cycle Calculator

You May Like: My Period Is 5 Days Late Am I Pregnant

What Does It Mean If My Doctor Changes My Due Date

Your doctor may change your due date if your fetus is significantly smaller or larger than the average fetus at your particular stage of pregnancy.

Generally, your doctor orders an ultrasound to determine the gestational age of your baby when theres a history of irregular periods, when the date of your LMP is uncertain, or when conception occurred despite oral contraceptive use.

An ultrasound allows your doctor to measure the crown-rump length the length of the fetus from one end to the other.

During the first trimester, this measurement provides the most accurate estimation for the age of the baby. Your doctor may change your due date based on the ultrasound measurement.

This is most likely to occur in the first trimester, especially if the date estimated by the ultrasound differs by more than one week from the date estimated by your doctor based on your LMP.

In the second trimester, an ultrasound is less accurate and your doctor probably wont adjust your date unless the estimates vary by more than two weeks.

The third trimester is the least accurate time to date a pregnancy. Estimates based on an ultrasound can be off by as much as three weeks, so doctors rarely adjust dates during the third trimester.

However, its not uncommon for a doctor to perform an ultrasound in the third trimester if theyre thinking about changing your date.

How Long Should My Period Last

Pin on Menstrual Cycle

Periods can last anywhere between 3 and 8 days, but they usually last for 5 days. Bleeding tends to be heaviest during the first 2 days, and the blood tends to be typically red. On lighter days, blood may be pink, brown or black. Brown or black periods are due to the iron in your bloody reacting more with the air, due to the slower flow.

Don’t Miss: How Painful Is A Period Cramp

How Much Blood Is Lost During A Period

The amount of blood lost during a period will vary from woman to woman, but, on average, a woman will lose about 6 – 8 teaspoons of blood per period. A loss of 80 ml or more, having a period longer than 7 days, or both, is considered heavy. However, most women have a good idea of whether or not their bleeding is within the normal range for them.

What If I Have Irregular Periods Or Long Cycles

Some women have cycles that are consistently longer than the average 28-day cycle. In these cases, a pregnancy wheel can still be used, but some simple calculations are necessary.

The second half of a womans menstrual cycle always lasts for 14 days. This is the time from ovulation to the next menstrual period. If your cycle is 35 days long, for example, then you probably ovulated on day 21.

Once you have a general idea of when you ovulated, you can use an adjusted LMP to find your due date with a pregnancy wheel.

For example, if your menstrual cycle is usually 35 days long and the first day of your LMP was November 1:

  • Add 21 days .
  • Subtract 14 days to find your adjusted LMP date .
  • After you calculate your adjusted LMP date, simply mark it on the pregnancy wheel and then look at the date where the line crosses. That is your estimated due date.

    Some pregnancy wheels may allow you to enter the date of conception which occurs within 72 hours of ovulation instead of the date of your LMP.

    Recommended Reading: Natural Ways To Help With Period Pain

    Next Period Forecaster Based On Ovulation

    Use your ovulation date to get a more precise forecast of when your next period will start – in many cases the exact period start date even if your menstrual cycle varies! Also shows if your period is late, and, optionally, timelines when to take home pregnancy tests.

    This period calculator can be very accurate but you need to have ovulated in this cycle, and the forecast is for your next menstruation start date, not future predictions beyond that.

    How Do I Calculate When My Next Period Will Be

    How do you calculate your monthly cycle? – Dr. Phani Madhuri
  • Measure how long your average cycle is, i.e., the time between one period beginning and the next one beginning. If you are unsure, use the average value of 28 days.
  • Note how long your average period duration is. If you do not know this value, use the average of 6 days.
  • Add the length of your cycle to the date your last period began. This is the day your next period should begin.
  • Add the length of your period to the date your next period will begin. This is when your next period should end.
  • Check your calculations with the Omni Period Calculator.
  • You May Like: What Is Considered Last Day Of Period

    Why Is My Period So Irregular

    You might also find that the first few years after getting your period will consist of irregular cycles and some spotting. It might take time for your body to find its rhythm, but you should notice a pattern as you get older. Plus, factors like age, diet and exercise, giving birth and breastfeeding could all impact your regularity. If you feel like something is off, always ask your doctor for advice in the words of Dr. Jessica shepherd no question is too obvious! To learn more, check out our article on irregular periods.

    This might take a few cycles but we promise you a period calculator is like that kind friend who loaned you their sweater to hide the stain from the last time your period surprised you. Except of course now you wont be getting surprised anymore, so you get to be the friend loaning the sweater next time round!

    When Is My Next Period

    Once you input all of that data into our menstrual cycle calculator, it will automatically estimate the dates when your next period starts and ends.

    For example, if your last cycle started on November 16th, and it typically lasts for 29 days, you can expect the next period to begin on December 15th. For a five-day-long period, you can expect the bleeding to stop on December 19th.

    Naturally, menstruation defies exact calculations, so it might happen that your period will be a few days early or late. Still, it’s a pretty good estimate to know whether you will get your period in the middle of your vacation.

    You May Like: When Is A Woman Fertile After Period

    Q How To Find The Safest Days To Have Sex Based On The Period Calculator To Avoid Pregnancy

    Calculating the safe period days is very simple. You have to fill in the dates of your last period, duration of your period and the duration of the menstrual cycle. And your data is ready for the next months! The dates with white spaces in the calendar are the safe day. Generally, one to seven days of the menstrual period, and the days after ovulation are considered safe or infertile.However, remember that the calculator is purely based on the details you give, and can be inaccurate if the data is incorrect.

    Q Difference Between Menstruation And Menstruation Cycle

    How to calculate next period date and ovulation time?

    When a woman menstruates, her body discards the lining of the uterus. The blood flows from the uterus through a tiny opening, passing out the blood through the vagina. This is called menstruation.

    A menstrual or period cycle is calculated from the first day of the period to the first day of the next period. An average menstrual cycle is 28 days long, but some women may have longer or shorter cycles. It can range from 21 to 35 days in adults and 21 to 45 days in teens.

    Recommended Reading: Is It Normal To Miss Your Period For 2 Months

    Q How To Track Your Period Manually

    • Note the first day of your last menstrual period as day One.
    • Count the days in between before you start another period. Or you can just count 28 days.
    • After a couple of months of marking likewise, you will be then able to figure out the actual menstrual cycle length, and you can calculate accordingly.

    Another way is to keep track of the physical signs you experience in a period. Cramping, breast tenderness, white discharge are some of the common symptoms. The next time, when you start to experience such symptoms, you should be aware that your next period is going to start.

    Emotional changes is another way to track your period manually. The fluctuating hormones alter your emotions such as feeling depressed, anxious or irritable for no apparent reason.

    How Does This Period Calculator Work

    This great tool can determine the most important data of your cycle for you, from the fertile days to the period days in your menstrual activity.

    The period calculator takes account of the first day of your last menstrual period, the menstrual cycle length and the length of the period.

    As you provide this data, by simply pressing the calculate button the form will display you personalized information for the next 12 menstrual cycles on terms of the most fertile days, period start and period end and you can change the data input for as many times as you want with the reset button.

    Also Check: How Long Can A Period Be Late

    Q What Factors May Affect A Womans Menstrual Cycle

    Several factors influence the date and flow of period. They include:

    1. Diet And Exercise: Exercise and diet can affect your period and your chances of pregnancy. If you are training for an athletic event and are not eating properly, your estrogen levels can drop, halting your period.

    2. Weight: Being too thin can also delay your periods, making your body think that you are not healthy enough for bearing a child. If you are overweight, excessive estrogen could build in your body, causing heavy or irregular periods.

    3. Stress And Lifestyle: Stress can mess badly with your cycle. Lifestyle habits like drinking and smoking can cause irregular periods.

    Will The Calculator Work For Irregular Cycles

    How To Calculate Ovulation date

    Women with irregular cycles gave greater difficulty predicting their next period. This happens because each cycle has varying durations, resulting in periods landing on different days.

    This calculator was developed around cycles that are regular, and therefore it is unlikely that it will calculate the correct period dates for women with irregular cycles.

    Don’t Miss: Can You Have Regular Periods And Not Ovulate

    What Is Menstrual Period Tracker Know Your Due Period

    The menstrual period Tracker or calculator takes inputs from user like first day of your last period and the average length of your menstrual cycle to estimate your next due period, Fertile Days ,Ovulation day and Safe Days. MomJunction Period calculator predicts the future periods and ovulation phase for a year so that you may plan for a special event that is period-free.

    Understanding Your Next Menstrual Cycle And Fertilization

    If you are trying to get pregnant you need to understand how the menstrual cycle works. The process starts when the thick lining of your womb starts to break up due to the decrease in estrogen and progesterone levels.

    Without a sufficient amount of these hormones, your body will shed the lining and it will start to prepare for your next menstrual cycle.

    However, if a sperm does make contact with and fertilizes the egg, it will close all pores to prevent more sperms from getting in there. The fertilized egg will stay in the fallopian tube for 3-4 days and then move to the uterus and attach to its wall, staying there for the long haul of pregnancy.

    Your body will produce human Chorionic Gonadotrophin or pregnancy hormone right away .

    The body will continue to produce the required estrogen and progesterone hormones so that the womb lining will not be shed and the placenta can grow mature enough that it can support the pregnancy.

    Read Also: How To Make Your Period Come On

    When Do Periods Stop

    Periods stop temporarily while a woman is pregnant, as well as stopping permanently after the menopause. The menopause usually occurs when a woman is in her late 40s to mid-50s. Periods will either become less and less frequent over a few months, or may suddenly stop.Some symptoms of menopause are hot flushes, night sweats, vaginal dryness, difficulty sleeping, increased anxiety and problems with memory and concentration.

    How To Use Menstrual Period Calculator

    Ovulation Calculator Next Period

    It is quite simple 3 step process to calculate your next period and your menstrual cycle using MomJunction period calculator. Also, download customised menstrual calender for year.

    • Enter the first day of your last menstrual period.
    • Enter the average length of the menstrual cycle.
    • Average duration of the last period.

    Once you share all the above information,period calculator will share your following menstrual date for a year, fertility calendar, ovulation phase, fertile phase and estimated due date.

    Also Check: Sharp Pain In Ovary During Period

    Why Should I Track The Number Of Days Between Each Period

    Whether you do it yourself or use an app, knowing how many days there are between each period can be a big help when it comes to feeling prepared and confident around yourâ¯period.

    A few days before your period, you may want to start wearingâ¯ALWAYS Dailies pantylinersâ¯for extra protection and assurance that you wonât be caught off-guard by your period. ALWAYS Dailiesâ¯are super thin and flexible, so youâll barely even know you have one on.

    When you know your period is due, be sure to stock up on period supplies likeâ¯Tampax. With a unique shape for better protection against leaks,â¯Tampax Pearl Compakâ¯tampons can boost your confidence during your period because you wonât be preoccupied with staining your knickers or having an embarrassing period accident. Combine this with your new knowledge of how many days there are between periods, and youâre golden!

    Knowing when your period is coming can also help you to manage and prepare for any hormonal changes.

    What If My Periods Are Further Apart Than Every 35 Days

    Menstruating individuals usually begin having a period between ages 9 and 15. The average person experiences at least four periods during their first year of menstruation.

    This number will gradually increase with time, with the average adult having at least nine periods a year. This means that some periods may naturally occur more than 35 days apart.

    Occasional lateness may also be caused by:

    • stress
    • hormonal birth control
    • perimenopause

    Chronic lateness may be caused by an underlying condition. Polycystic ovary syndrome , for example, can cause:

    • irregular periods
    • excess hair growth on the body
    • unexpected weight gain

    Premature ovarian failure may also cause irregular or occasional periods in menstruating individuals under age 40.

    Pregnancy is another possibility. If youre sexually active, it may be a good idea to take a home pregnancy test.

    If you suspect pregnancy or another underlying condition is to blame, make an appointment with a doctor. They can assess your symptoms and advise you on any next steps.

    Don’t Miss: Do You Have A Period With An Iud

    Related Posts

    Popular Articles