A pregnancy test stick is something that most women preparing for pregnancy in modern society know about. Many women purchase pregnancy test kits during their preparation for pregnancy, and during sexual intercourse, they test themselves for pregnancy at an appropriate time. Many women know that morning urine testing is more accurate. But for some women who test at night, is it accurate to test for pregnancy at night?
Is it accurate to test pregnancy at night
If there is a delay in menstruation during sexual activity, early pregnancy test strips can be used to determine pregnancy. If the test time is short, it is recommended to have an accurate morning urine test. If menstruation is delayed for five days, it is also accurate in the evening. You can have a follow-up check every two days. If the result is negative, pregnancy can be ruled out. Relax and wait a little longer.
Generally, there should be a period of 35 to 40 days of amenorrhea, and a clearer morning urine test is needed. If you are really worried, you can go to the hospital for a B-ultrasound examination and blood test to see if you are pregnant. If you are not pregnant, just wait for her to have her period.
Definition of pregnancy test stick
The pregnancy test stick is commonly known as a pregnancy test stick, pregnancy test film, or pregnancy test card. Testing principle: The so-called testing is to use the hCG contained in urine to check. Human chorionic gonadotropin, abbreviated as hCG, is a hormone secreted by pregnant women's bodies; This hormone exists in urine and blood, and typical pregnancy tests use the reaction presented by the binding of single or multiple HCG antigens in the device to antibodies in urine to determine pregnancy.
The accuracy rate of legitimate brand pregnancy test sticks is about 85% to 95%.
Firstly, it is necessary to clarify some issues: ovulation occurs around the 14th day of the menstrual cycle. Assuming successful fertilization at this time, it takes 6 to 7 days for the fertilized egg to produce HCG, and pregnancy tests are determined by measuring urine HCG. The true start of HCG secretion occurs after the implantation of the fertilized egg, when syncytiotrophoblasts begin to secrete HCG in large quantities. And the implantation of the fertilized egg takes at least 11 days.
So, if you want to be more accurate, wait for 11 days at the earliest, which will be more accurate. You can guess for yourself.
The result of pregnancy (positive) can be read after 1 minute (at the fastest 30 seconds), which means that if two lines are clearly displayed after 1 minute during the test, it indicates pregnancy (positive), and there is no need to wait for another 3 minutes before reading.
The result of not being pregnant can only be determined after 3 minutes because in early pregnancy, the HCG hormone content in urine is very low, and weak positive results may appear during testing. Weak positive results may not be displayed after 1 minute, and with the increase of reaction time, two lines can only be displayed after 3 minutes. At this time, the appearance of two lines should still be interpreted as a positive result of pregnancy; If there is still only one control line after 3 minutes, it can be interpreted as a result of non pregnancy (negative).
This article provides a detailed introduction to whether a pregnancy test is accurate at night and what a pregnancy test stick is. As a woman who wants to use a pregnancy test stick at home to check if she is pregnant, it is best to know that using a pregnancy test stick for morning urine testing is the most accurate. If you are a pregnant woman preparing for pregnancy, testing at night also has a certain degree of accuracy.
