Getting PregnantPregnancy

Pregnancy Test Calculator: How to Make Sure the Result Is True

When is the best time to take a pregnancy test, how soon can I take a pregnancy strips, and when my result can become positive are very important questions to ask when you are trying to conceive.

Pregnancy Test Calculator

The online calculator will help you to calculate the best time to take a pregnancy test

Calculate by


Your average menstrual cycle length



Your Cycle Calculations

Last Period Started:
Approx. Ovulation:
Approx. Next Period:
Approx. Fertile Days:

The blood test can be positive as early as
The early urine home pregnancy test will be positive as early as

I also recommend you to read our Best Pregnancy Test Review. It will help you to choose the best test for your needs.

On the way to becoming a young mother, you may have some tricky questions about your body and a baby. As a mother and nutritionist, I firmly believe it is essential to be fully aware of the changes in your body before, during, and after childbirth. It’s a safe road to a healthy life, both for you and your child.

Today, I want to clarify a bit how the pregnancy test calculator works, and how to calculate the very days on which a woman can get pregnant. Therefore, let’s talk about the menstrual cycle calculation and how to know the best time to do a pregnancy test to get an accurate result.

First Signs of Pregnancy: How to Tell Right Away

Many of us at least once in our lives have experienced a delay in their periods and asked themselves the question: “Am I pregnant or not?”. Everyone wants to know the answer ASAP, not wasting time on the appearance of the first signs of pregnancy.

Today, you can get an answer to your question quite quickly. For doing this, you need to buy a pregnancy test in a pharmacy to determine with high accuracy whether a new life has arisen in your womb or not. If you want to know whether there is a need to get a test, be sure to use pregnancy test calculators.

How Does Pregnancy Test Work & When Should I Take a Pregnancy Test Calculator

Nowadays, pregnancy tests are sold on every corner, and most women prefer to receive such news as early as possible to begin to act deliberately. A pregnancy test is a simple but proven and relatively reliable way to find out about this condition before your period arrives.

If you do your ovulation calculation, you can also oversee the possibility of getting pregnant even before doing the test. An ovulation calculator shows the approximate period of the high possibility of getting pregnant. So, the day when you are ovulated is equal to your fertile day.

The ovulation calculation can be an extra function in your menstrual cycle track app, or you can download a separate app. But before using all these apps and calendars, it’s vital to know how to tell the difference between pregnancy test options available.

If you do a paper strip test, then it has an absorbent part with a coloring substance. After immersion in urine, it stains in a specific color. If the hCG hormone is present in your urine, that is, you are pregnant. The test strip releases the dye, and two blue or crimson lines appear on its surface.

Unfortunately, you can’t rely on the results of a single test. Firstly, the reagent itself can fail. These chemical components have a short shelf life. If the reagent is not active enough, the check may not work properly.

Secondly, the level of the hCG hormone can be lowered for some reason. Thirdly, some diseases provoke an increase in hCG levels without pregnancy. Therefore, I recommend doing such a test twice. If you want to make sure that you do not hurry things up and do the test correctly, it’s better to use a pregnancy test calculator. This online solution can help you to determine the best time to make an analysis based on your usual menstrual cycles.

Can We Predict Our Pregnancy & How to Use Ovulation Tracker

Yes, it’s quite often for young women to have unstable menstrual cycling. Fluctuations in the menstrual cycle phases are affected by general health, oral and hormonal contraceptives, other medications, stress, or overly active sex. So, be sure to have a personal menstrual cycle calculator, as the period can be very individual for each woman. After an orgasm, hormone levels can increase dramatically, and menstruation may begin earlier than the menstrual cycle phase. Therefore, it can be tricky to determine the real reason for a delay.

Most of the pregnancy test packages indicate that testing can be done from the first day of the delay. Indeed, if menstruation did not start with active sex life in due time, it is time to check things out. If you wonder when to take pregnancy test calculator into account, I recommend starting using one today. If you want to be totally in control over your body, you need to be aware of what happens with you in the first days of pregnancy or the case of the period delay.

The egg passes through several stages of development, one of which is ovulation. When do you ovulate? At this stage, a mature egg leaves the ovaries and moves into the uterus. Only then, it can connect to the sperm. If the child is not included in your plans, do not forget to protect yourself. If you plan to become pregnant, you must monitor and make ovulation tests.

You should keep a detailed account of the days of the cycle, do ovulation testing, and measure the rectal temperature in the morning. Before and during ovulation, the temperature rises by about a degree. However, since this complex process can have individual characteristics with different ovulation symptoms, it is possible to know the time of ovulation only approximately and have several ovulation tester periods.

Ovulation lasts approximately 48 hours, and during this time, the egg is active. After fertilization, the egg attaches to the wall and begins the process of division. Changes in the hormonal background start only after the egg is fixed.

Some rapid ovulation test options can determine the presence of a hormone on the third day, but it is better to check within 5-6 days. In this period, the hormone level becomes high enough to determine the condition of a woman with more confidence. Doing a pregnancy test is the most effective at this particular time.

All Tests Are Sometimes False

There are times when a test shows a false negative result. Why can it happen, and how to figure it out? Such a question can bother a woman if she observes changes in her body, feels signs of pregnancy, but the test shows a negative result. A similar effect, according to statistics, can be found much more often than the opposite, false positive.

The reason lies in the untimely testing. If your period is late for a day or two, there is no reason to buy a test in panic. It can show you the false result. The reason is that the manufacturer gives a guarantee of the correct answer provided by the test only if there is a certain amount of the human chorionic gon****opin hormone in the urine. According to the instructions, this figure should be at least 20-25 mIU/ml.

If we talk about blood, then the indicated concentration of the hormone will appear only 7-10 days after the fertilization of the egg, and every two or three days, its level becomes twice bigger. If we talk about urine, then it will be half as much HCG, so doing a home test is best on 12-15 days after the day when the woman suggests that she became pregnant. A common mistake that can lead to the wrong test result is to hurry up and take the pregnancy test calculator long before the first signs of possible pregnancy.

What You Need to Know Before Buying a Pregnancy Test

Frequently Asked Questions

Read the most frequently asked questions and be aware of the answers. I hope that this information will help you to determine the right time for doing a pregnancy test

How Long Is Your Cycle?

All women have a completely individual menstrual cycle, which is counted from the first day of menstruation to the day preceding the start of the next one. The average menstrual cycle phase is 28 days, but it can last 21 days only, or as much as 35. Bleeding can last from two to seven days.
Menstrual cycling is accompanied by rhythmic changes not only in the reproductive (hormonal) system but throughout the woman’s body. The purpose of these changes is to prepare the body for pregnancy. A stable menstrual cycle is an essential indicator of a woman’s health status. The beginning of the period is known as the first day of menstruation (the start of heavy bleeding), and its end is the final day before the new menstruation.
The cycle with a period of 28 days with a duration of 3–5 days and blood loss from 50 to 100 ml is considered to be ideal. You can use some apps to define your cycle or calculate fertile days so that you can be aware when there is a high chance of getting pregnant. To get the full picture, you will need to make notes for at least three consecutive months or use any fertile days calculator. Therefore, you are guaranteed not to miss any adverse changes.

Do You Know Your Days of Ovulation?

As I have mentioned before, ovulation is the phase when an egg gets released from the ovary into the fallopian tube. There, it gets ready for fertilization before heading to the uterus, where the fetus will grow. According to ovulation calendar fertile days occur around the fourteenth day of the menstrual cycle. During this phase of the cycle, a woman is most likely to become pregnant.
How are the most fertile days calculated? The date of ovulating can be calculated by subtracting 14 days between ovulation and the first day of menstruation from the menstrual cycle as a whole. It means that if the period lasts 28 days, ovulation occurs on the 14th day, whereas if the cycle lasts 33 days, ovulation occurs on the 19th day.
If a woman’s cycle is irregular, such an ovulation calendar becomes less reliable. For example, if the cycle lasts 27-30 days, ovulation will occur between 13 and 16 days. You can easily download a pregnancy testing calculator to your phone and mark the fertile days. Statistics show that the reliability of the ovulation calc is in the range of 97% to 99%, and these are very high indicators.
If you want to know how many days after your period are you fertile, keep in mind that in the 28-day cycle, the fertile phase begins from 10-11th day to the 15th day, or 3-4 days before and one day after ovulation.

When Can I Take a Pregnancy Test Calculator?

The reliable information about the onset of pregnancy can be obtained not earlier than 5-6 days after its start, and a doctor’s opinion should support the results. If there is no cause for concern, wait about the third week. Doing a pregnancy test is the best and most effective at this particular time.

What Is the hCG Level?

This hormone begins to be produced in the female body after implantation of the embryo into the uterine wall. On day 7-8, after conception, the secretion of this hormone can be detected in the urine. So, if you suspect the pregnancy, feel free to use the test without waiting for the date of the expected menstruation.

The level of hCG in the blood allows you to find out the approximate age of the fetus. With multiple pregnancies, the level of the hormone in the blood increases in proportion to the number of fetuses.

Take a Deep Breath & Keep Track of Your Cycles

Perhaps, you are excited, joyful, and delight overwhelms you, emotions go off the scale, and you want to shout about this fantastic news to the whole world. On the other hand, you may be confused, as this pregnancy was a complete surprise to you. Perhaps, you are a wise mother of three or four babies, and you are on edge after the first delay of menstruation. If you understand your body and the way it functions, you are more luckily to save yourself from unnecessary stress and know when to take a pregnancy test calculator into consideration.

It is also essential to understand that some tests may not show the truth. However, by knowing the right timing for doing a test, you are assured of the most reliable results. Have you ever had the pregnancy tests that give incorrect results? What method of detecting a pregnancy do you consider as the most trustful? Let me know in the comments below.


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