How do I use the pregnancy calculator?To find out your due date, you just need to select the date of the first day of your last period on our pregnancy calculator tool, adjust your average cycle length and click 'submit’. Your cycle length is the number of days between your periods, counting the first day of your period until the day before your next period starts. Show
You will then receive your estimated due date and the option to sign-up to our pregnancy email. This weekly email gives you fun pregnancy facts, useful tips and great recipe ideas to help you and your baby have the healthiest possible pregnancy. Are you in early pregnancy? Find out all you need to know about pregnancy from week 4 onwards. What if I have irregular periods?If you were having irregular periods before you got pregnant, you can still use the pregnancy calculator. Just choose your average cycle length. But bear in mind that an ultrasound will be the most accurate way of predicting your due date. How accurate is the due date?The pregnancy calculator gives you an approximate due date. It is worked out by adding 280 days (40 weeks) to the first day of your last menstrual period. This is based on a 28-day cycle but is adjusted for longer or shorter cycles. Your period and ovulation are counted as the first 2 weeks of pregnancy. If you have the baby on your due date, your baby has been growing for 38 weeks, not 40, but you are still classed as 40 weeks pregnant. Remember that only around 5% of babies are born on their due date so it’s just an estimation. Will I get a more accurate due date later in the pregnancy?You will have your first appointment with the midwife, the 'booking appointment', by 10 weeks. At that appointment, you will be offered an ultrasound scan – this is often called the dating scan. This scan will check how many weeks pregnant you are and work out a more accurate due date. You’ll also be able to find out whether you’re having more than 1 baby and how your baby is developing. But if you're impatient to know when your baby will arrive, our due date calculator can give you an estimated due date now! What should I do next?If you don’t already have a midwife, you may be able to self-refer to your local maternity unit directly for your antenatal care. Visit your local hospital’s website to find out more. Speak to your GP if you can’t self-refer or if you think your pregnancy may be high-risk. For example, if you have a long-term condition, had complications in a previous pregnancy or experienced a late miscarriage or stillbirth. Your GP will tell the midwifery team you are pregnant. You will be given a date for your first appointment with a midwife. This should happen before you are 10 weeks pregnant. We know pregnancy can be an overwhelming time. We created our Healthy Pregnancy tool to try to take away some of this anxiety by giving you a personalised set of tips for your pregnancy.
What is a late period?A late period is when a woman's menstrual cycle doesn't start as expected, with a normal cycle lasting between 24 to 38 days. When a woman's period is seven days late she may be pregnant although other things may cause a late or skipped period. If your period is late or you’re wondering if you’re pregnant, the days can tick by rather slowly. How long do you have to wait before taking a pregnancy test? The instructions on home pregnancy tests often talk about “your missed period.” What do they mean? In the world of pregnancy testing, a missed period means you expected your menstrual bleeding to have started yesterday, and it still has not started. The day of your expected period depends on what your normal menstrual cycle looks like and when your last period started. The menstrual cycle is the time from the first day of your period to the day before your next period starts. The average cycle is 28 days, with a pattern that looks something like this:
Some women’s menstrual cycles last the same number of days every month. These women can accurately predict the day their period will start. Other women have a menstrual cycle that is a little different each month. Your period is still considered regular as long as it comes every 24 to 38 days. Symptoms of a late period and pregnancyThe symptoms of a late period will be obvious to many women who menstruate regularly. If you were expecting your period, and it doesn’t begin, you’ll know it’s late. Not all periods arrive like clockwork, and it’s very normal for periods to occur on a slightly different schedule. Pregnancy isn’t the only thing that can cause a late or skipped period. But if you’re wondering whether your missing period might mean you’re pregnant, you can look for other early symptoms of pregnancy. During the first 8 weeks of pregnancy, many women experience: 1. Fatigue During the first trimester (weeks 0 to 13 of pregnancy), your body produces large amounts of a hormone called progesterone. This can make you feel sleepy. Even during the first week after conception, you may feel more tired than usual. 2. Spotting Implantation bleeding is one of the earliest signs of pregnancy. It is very light bleeding, often called “spotting”, that happens as a result of the fertilized egg implanting (attaching) to the uterine wall. Implantation is usually 6 to 12 days after conception, or the moment the egg is fertilized by a sperm. Some women also have mild abdominal cramps during implantation. Other women don’t notice any symptoms with implantation. 3. Breast Changes You may see changes in your breasts as early as 1 to 2 weeks after conception. Your breasts may be swollen and tender to the touch. You may have soreness or a feeling of fullness in your breasts. 4. Headaches The rapid rise in hormones and blood flow during pregnancy can lead to mild headaches even before a missed period. 5. Missed Period This is often the first symptom women notice. If you are pregnant, you will probably not have regular menstrual bleeding. Some women do have spotting during pregnancy, but it would probably be much lighter and shorter than your usual period. 6. Nausea Morning sickness typically shows up 2 to 8 weeks after conception and goes away by about 14 weeks. Though it is called morning sickness, nausea during pregnancy can happen at any time of the day or night. For many women, symptoms are the worst when they first get up in the morning. Some women experience vomiting with morning sickness, but others do not. 7. Frequent urination Around 6-8 weeks after conception, you may start to feel like you have to pee much more often than usual. This symptom is likely to continue for the rest of your pregnancy. Causes of a late period and pregnancyPregnancy happens when an egg is fertilized by a sperm. But pregnancy is not the only reason for missed or late periods. Some other possible causes include:
QUESTIONThe first sign of pregnancy is most often: See AnswerDiagnosis and tests for a late period and pregnancyHome pregnancy tests check your urine for a hormone called human chorionic gonadotropin (hCG) that is only present when you’re pregnant. The body starts making hCG at implantation, and many home pregnancy tests can detect hCG around the day of your expected period. However, it is common to get a false negative in the first few days after a missed period. The amount of hCG in your body increases daily in early pregnancy. If you test too early, there might not be enough hCG for a positive test. Testing one week after a missed period is most likely to give you accurate results. If you’ve had two home pregnancy tests come back negative and still think you’re pregnant, check with your doctor. They can order a blood test that looks for the same hormone but can detect it earlier in the pregnancy. Blood tests can give accurate results as soon as 6 to 8 days after ovulation. If your pregnancy tests come back negative, but you still haven’t had a period, talk to your doctor to determine what might be the cause and if any additional tests or treatment are needed. If you’re trying to conceive, your doctor can perform additional tests or make other suggestions. Treatments for a late period and pregnancyIn general, if you’ve missed a period and you know you’re not pregnant, you don’t need specific treatment or care. However, if you were having a regular cycle and you’ve stopped, if you’re experiencing bleeding at unexpected times, if it’s been more than 45 days since your last period, and if you have additional symptoms that point to other concerns, your doctor will likely look into treatment options. Depending on the cause, your doctor may prescribe hormone therapy like birth control pills or other medication, or they might be able to suggest lifestyle changes to help you have a regular period cycle. If your late period is a sign of pregnancy, your doctor can help you come up with a treatment plan to be sure you receive the proper care and regular checkups throughout your pregnancy. Health NewsHow many days after my period can I get pregnant?Ovulation or the fertile window occurs between days 12 and 20 of your cycle, and studies have reported that you are more likely to become pregnant during this time because an egg is released from your ovary. The exact time depends on the length of your cycle.
You can use fertility awareness as a natural birth control method. This means that if you have a period that lasts between 26 and 32 days, the days 8 through 19 will be the most fertile days. This method, however, works best if you have regular menstrual cycles. There is a one to five percent chance of getting pregnant. Though the fertile window is when you have the best chance of becoming pregnant, you can become pregnant outside of it. Not every woman's cycle is the same number of days and neither is their window. Is there a possibility to get pregnant just after my period has finished?Getting pregnant right after your period is unlikely but not impossible. The chances of becoming pregnant are lower immediately following periods than a few days or a week later.
SLIDESHOW16 Early Signs & Symptoms of Pregnancy: Could You Be Pregnant? See SlideshowOvulation calculatorHow to use this ovulation calculator tool
5 symptoms of ovulationThe female reproductive process of releasing a mature egg from the ovaries and transferring it to the fallopian tubes for insemination is called ovulation. Every month, about two weeks after menstruation begins, one egg is released. The following are some common signs of ovulation:
Ovulation and calendar charting may not be perfect, but they may be fairly accurate. If you are unsure about your last menstrual period or have irregular cycles, the results could be incorrect. The calculators can provide an estimate of the most likely ovulation time. Combining them with ovulation symptoms may be beneficial. These tools are based on averages, and even if you are accurately charting your periods, cycle length and ovulation date may vary with each cycle. These tools are especially useful if you have irregular periods because they calculate average cycle length and give them a wider fertility window in which to conceive. Subscribe to MedicineNet's Pregnancy & Newborns NewsletterBy clicking "Submit," I agree to the MedicineNet Terms and Conditions and Privacy Policy. I also agree to receive emails from MedicineNet and I understand that I may opt out of MedicineNet subscriptions at any time. How early can I know my symptoms of pregnancy?Each woman's early pregnancy symptoms are usually unique. You may notice the first signs of pregnancy within a week or two of conception, whereas others may not notice anything for months. It depends on your ability to detect changes in the body and how sensitive you are to those. A blood test, which can detect pregnancy as early as one week after conception, is always an option. During studies, women trying to conceive kept daily records of their symptoms from the time they stopped using birth control until they were eight weeks pregnant. This was based on the first day of their last menstrual period. The outcomes were:
Some pregnancy symptoms, such as nausea and vomiting, can appear as early as a few days after conception, even before a positive pregnancy test. Spotting or cramping
Hormonal changes
Morning sickness and tiredness
Raised basal temperature
Frequent urination
To increase your chances of getting pregnant, try to have sex during the fertile window. It is necessary to engage in sexual activity regularly. Pregnancy rates are the highest among partners who have intercourse every two to three days during the month. Avoid smoking and alcohol and limit your caffeine intake. Tobacco and alcohol use in men can impair sperm quality and thus reduce fertility. It is critical to maintaining a healthy weight. Being overweight or underweight can hurt ovulation. FromMedically Reviewed on 2/25/2022 References SOURCES: American Pregnancy Association: "Early Signs of Pregnancy." Kids Health: "Irregular Periods." Office on Women's Health: "Knowing If You are Pregnant." Office on Women's Health: "Your Menstrual Cycle." Office on Women's Health: "Prenatal Care and Tests." National Health Service: "How can I increase my chances of getting pregnant?" University of Michigan: "Missed or Irregular Periods." Fertility Coalition. Your Fertility right time for sex. https://www.yourfertility.org.au/everyone/timing American Pregnancy Association. Can You Get Pregnant on Your Period? https://americanpregnancy.org/can-i-get-pregnant-if/can-you-get-pregnant-on-your-period/ Wilcox AJ, Dunson D, Baird DD. The timing of the "fertile window" in the menstrual cycle: day specific estimates from a prospective study. BMJ. 2000;321(7271):1259-1262. https://www.ncbi.nlm.nih.gov/pmc/articles/PMC27529/ Journey House Pregnancy Resource Center. How Soon After Sex Can I Know If I’m Pregnant? https://journeyhouseenid.org/how-soon-after-sex-can-i-know-if-im-pregnant/ WebMD. Ovulation Calculator. https://www.webmd.com/baby/healthtool-ovulation-calculator How many weeks Am I pregnant when I miss my period?The first day of your last period marks the beginning of the first week of pregnancy. By the very first day of your missed period, you're already considered 4 weeks pregnant.
How do you calculate 45 days pregnant?So … First, determine the first day of your last menstrual period. Next, count back three calendar months from that date. Lastly, add 15 days to that date if it's your first pregnancy or 10 days if it's not your first pregnancy.
How far along is 42 days pregnant?Week 6 of pregnancy (Days 42-48)
How do you calculate 40 days pregnant?First day of last period
Most pregnancies last around 40 weeks (or 38 weeks from conception), so typically the best way to estimate your due date is to count 40 weeks, or 280 days, from the first day of your last menstrual period (LMP).
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