Frozen blastocyst transfer 10-14 days can usually be detected, test time try not to be too early.
Before the transfer, the female eggs and male sperm will be taken out to form fertilized eggs and then cultured in vitro, and the embryos cultured for 5-7 days are called blastocysts, and the remaining high-quality embryos will be frozen and preserved after the transfer, and there are also women who are not physically fit for the time being for the transfer, so the embryos are frozen for a certain period of time, and then the embryos will be transferred again when they are physically fit, and these frozen embryos are known as frozen blastocysts.
It is generally recommended that patients go to the hospital 10-14 days after the embryo transfer to take blood HCG or pregnancy test paper to detect pregnancy, which will be more accurate at this time, although some women may be able to detect a few days in advance, but try not to do so too early, so as to avoid unsatisfactory results of the test.
After successful implantation, the embryo settles in the uterine lining and will secrete human chorionic gonadotropin, which will change from less to more with the increase of gestational weeks, and will reach a certain concentration to detect pregnancy.