How many days of delayed menstruation is the most accurate blood test

When the menstrual period is delayed, we often worry that it will not come and suspect that we are pregnant unexpectedly. Therefore, many people say to take a pregnancy test to see if they are pregnant. However, if menstrual blood does not come or does come, it usually takes some time to accurately measure it. So, how many days after the menstrual period is delayed can the blood test be most accurate?

How many days after menstruation is delayed is the most accurate blood test

After a woman becomes pregnant, there will be changes in human chorionic gonadotropin in her blood and urine. However, generally speaking, the most obvious change is seven days after the menstrual period is delayed. Therefore, it is more accurate to test at this time. If the test result is positive, it usually indicates that the woman is pregnant. If it is negative, it means she is not pregnant.

You can test for pregnancy on the day your period is delayed. You can use early pregnancy test strips or pregnancy test sticks to test your morning urine. If you test again one week after your period is delayed, the result will be more accurate. Go to the hospital for a pregnancy test. Blood hCG test is currently the fastest and most accurate pregnancy test method, and it can usually be tested about 10 days after having sex. If menstruation is delayed, the possibility of pregnancy should be ruled out first. In addition, it is also necessary to further determine whether the delayed menstruation is caused by other physiological factors. When menstruation is delayed for more than 10 days, it is recommended to go to the hospital for a detailed examination to determine the cause. If two red bars appear on the early pregnancy test paper after menopause, pregnancy is considered; if one of the two red bars is lighter in color, it is called a weak positive, and a follow-up visit is required after a week. Blood test for pregnancy is more accurate and does not require fasting to be performed. Go to the hospital outpatient clinic for a pregnancy test. Testing hCG in the blood is the fastest and most accurate pregnancy test method at this stage.

Is it normal to have menstruation while breastfeeding?

In fact, menstruation during breastfeeding is a very normal physiological phenomenon. There are significant individual differences in the timing of menstruation after delivery. If the menstruation resumes early, the menstruation may come after the baby is one month old, while if it is late, it may not resume until the baby is one year old. Under normal circumstances, mothers who do not breastfeed usually enter menstruation 6-10 weeks after giving birth. The recovery time of menstruation for breastfeeding mothers is usually delayed, and some mothers may not have menstruation at all during breastfeeding. From a medical point of view, based on the tissue shape of the uterine wall, the uterus and ovaries may be able to ovulate as early as 33-42 days after giving birth. Scientific research data show that 40% of pregnant women who do not breastfeed resume ovulation 6 weeks after giving birth; by 8-12 weeks after giving birth, only about 35% of pregnant women have not resumed ovulation and menstruation. For breastfeeding pregnant women, about 25% will resume ovulation and menstruation 12 weeks after giving birth, and most breastfeeding pregnant women generally take until 18 weeks to resume ovulation function. However, it is sometimes difficult to clinically determine the exact time of the first menstrual period after childbirth, and a very small number of pregnant women will begin to have light to moderate intermittent bleeding immediately after delivery.