Can blood test detect the changes of chorionic gonadotropin in blood and urine of pregnant female friends after pregnancy? But generally speaking, chorionic gonadotropin is the most obvious change stage after menstruation is delayed for seven days, and the detection is more accurate at this time. If the test result is positive, it probably means that the woman is pregnant. If it is negative, it means that she is not pregnant.
In the first trimester, you can test whether you are pregnant or not if you are pregnant 18 days or if your menstruation is delayed by 7- 10 days. Because it takes 6-8 days for sperm and eggs to combine to form fertilized eggs, and then it takes 7- 10 days for HCG secreted by placenta to enter urine. It is scientific to detect pregnancy from urine after 18 days. Pregnancy can be detected as early as seven days after sex, usually about 14 days, and a few can be diagnosed in more than 20 days, which can be confirmed by self-use test paper or hospital HCG examination.
If you are not pregnant after the test, but your menstruation has not come yet, please be sure to go to the hospital for a blood test. But if the test is pregnant, it is basically accurate. Make sure you are pregnant. If you don't plan to have a baby, you should go to the hospital as soon as possible. The most important thing is to make a good abortion plan and minimize the harm to the body.
How much is the blood test for early pregnancy? Generally speaking, after the same room, if you are pregnant, you can test it in about a week, and the blood test is the fastest. However, for the sake of accuracy, it is best to check when menstruation is delayed. Generally speaking, urine HCG test such as early pregnancy test paper can only be tested one week after menopause, while blood HCG early pregnancy test can often be tested one or two days after menopause, which can advance the time of confirming pregnancy and make corresponding countermeasures for pregnancy earlier. Generally speaking, the results of hcg blood test can come out in less than an hour, about ten yuan. However, in some places, the cost is about 100 yuan, and the results can usually be obtained in the afternoon or the next day. However, the results of blood HCG in general hospitals will take one day, probably around 50 yuan.
The results of this test will take at least two hours to come out. It is recommended to check on an empty stomach in the morning, so that the results can be obtained near noon. In addition, this test can only judge whether you are pregnant after seven days of sex. Usually it can't be detected until seven days after fertilization, so it's not until then.