How many days pregnant can be measured with test paper

Human chorionic gonadotropin (HCG) is gradually produced in women after pregnancy. HCG levels generally begin to rise after implantation and increase over time. HCG levels in urine usually reach levels detectable by dipsticks around 1014 days of pregnancy. Different brands and types of test strips may vary in sensitivity. Some sensitive test strips may detect signs of pregnancy earlier, but false positive results may occur. Therefore, follow the instructions for use of the test strip correctly. If the test is too early, the HCG level may not be high enough to produce a negative result. It is recommended to test after the expected menstrual period is delayed, so that the result is relatively accurate. In addition to the test strip test, you can also use the blood test HCG to determine whether you are pregnant. The blood test is earlier and more accurate than the test strip test. If there are doubts about the test strip test results, or there are special circumstances, such as early pregnancy bleeding, you can seek medical advice for blood testing. Regardless of the test results, if there are menstrual delay, early pregnancy symptoms (such as nausea, vomiting, breast pain, etc.), should seek medical advice in time, in order to obtain more accurate diagnosis and professional advice. The doctor will combine the history, symptoms, test results and other comprehensive judgment whether pregnant, and give appropriate guidance and treatment.