Often termed "chemical pregnancies," these miscarriages cause you to get a positive pregnancy test but then have your period arrive on schedule or only a few days late, making the test appear to be a "false positive. It's important to know what a positive or negative result means. Although it is true that these tests can tell you that you are pregnant in a given cycle, they cannot tell you that you are definitely not pregnant, and there is a significant chance of having a false negative result. American Pregnancy Association: "Understanding Pregnancy Tests: Urine & Blood,Â "Taking a Pregnancy Test,"Â "Pregnancy FAQ: Early Pregnancy. What does getting a negative pregnancy test result mean? In very rare cases, you can have a false-positive result. J Clin Med Res. But you may be pregnant if: If you get a negative result, try retesting within about a week to double-check. If you still haven’t got your period the next day, this is the day of your missed period. Both at-home urine and doctor's office blood pregnancy tests check for the presence of the pregnancy hormone hCG, or human chorionic gonadotropin. The package insert for one of the leading brands of early pregnancy tests states that, when used five days before the expected menstrual period, the test will detect hCG in about 76% of pregnant women. The two types of blood pregnancy tests are: A qualitative hCG testÂ simply checks for hCG. In other words, it's better to take a test first thing in the morning rather than after drinking a lot of fluids throughout the day. Are Blood Pregnancy Tests Better Than Home Tests? Certain drugs, such as tranquilizers, anticonvulsants, hypnotics, and fertility drugs, could cause false-positive results. If this is your goal, instead of taking early pregnancy tests—which can be negative even if you are pregnant—it may be better to assume that you could be pregnant and adjust your habits doing those few weeks from conception to a missed period. Clearblue Early Detection Pregnancy Test can tell you 6 days sooner than your missed period (which is 5 days before your expected period)1. A missed period is often the first sign of pregnancy, but tender breasts, nausea, tiredness, and mood swings, among other symptoms may also be early signs you’re pregnant. Early pregnancy tests are a more sensitive type of urine test. These early detection tests may offer advantages in some circumstances. Thus, the uncertainty of a negative result may lead you to use multiple early pregnancy tests in each menstrual cycle, and this practice can cost you a considerable amount of money without changing the ultimate answer. Results are based on the information you have provided. Clearblue Early Detection Pregnancy Test can tell you 6 days sooner than your missed period (which is 5 days before your expected period) 1. While early pregnancy tests may give you peace of mind in some cases, be sure to talk to your doctor to ensure you're using them correctly to get the most accurate results. Reasons Your Pregnancy Test Is Negative But Your Period Is Late. Theyâre also very accurate if you follow the directions. If you take the test twice and get different results, call your doctor. Are You Pregnant If the Test Shows a Positive Line After 10 Minutes? How Medications Can Affect Pregnancy Test Results. Identified in the early 20th century, human chorionic gonadotropin (hCG) is a glycoprotein hormone that rises quickly in the first few weeks of pregnancy, typically reaching a peak at 8- to 10-weeks gestational age. Some pregnancy tests can spot hCG before you miss a period. Are Home Pregnancy Tests Always Accurate? If you think you might be pregnant, you want to know right away. However, there is a significant chance of getting a false negative with these tests. Two main types of pregnancy tests are blood tests and urine tests. The most sensitive tests on the market can potentially give you a positive result four to five days before your period is due, meaning you don't necessarily have to wait for a missed period, or watch for other pregnancy symptoms, to find out whether you are pregnant. If you think that you perhaps are be pregnant, take our free online pregnancy test from the privacy of your own home. A quantitative hCG testÂ (beta hCG) measures the exact amount of hCG in your blood. It can find even very low levels of hCG. But it’s important to understand what’s happening in your body so you know how soon you can test. Using an Early Pregnancy Test Before Your Missed Period, Ⓒ 2020 About, Inc. (Dotdash) — All rights reserved. Everyone's circumstances are different, and you have to make the decisions that work best for you. After the egg is fertilized, it travels to the uterus (womb) and implants itself in the uterine wall. Your pee is too diluted because you drank a lot of fluids right before the test. If you’re trying to get pregnant, you’ve probably experienced the agony of wondering whether you should take a pregnancy test.Especially when you’re experiencing potential early signs of pregnancy like nausea, headaches, and fatigue, it can be hard to resist testing early. Your body makes this hormone after a fertilized egg attaches to the wall of your uterus. What You Should Know About Blood Pregnancy Tests and How They Work, Put That Early Pregnancy Test Down and Read This First. This is true no matter how faint the line, color, or sign is. HCG levels rise rapidly in early pregnancy, as shown in the graph below, meaning that if you test again on the day of your expected period, your result (whether positive or negative) will be over 99% accurate. Additionally, if you take a test when your urine is diluted rather than concentrated, it can throw off your results. Pregnant With Allergies? It is this hormone that all home pregnancy tests detect. Early pregnancy tests are a more sensitive type of urine test. American Psychological Association. You may want to discuss your testing plans with your doctor first. For the most accurate results, most experts recommend waiting to take a pregnancy test until the day of a missed period rather than testing early. If you have any other questions about the pregnancy test or the results, call your doctor or the telephone number listed with the test.