Normally, it's going to take several weeks for that placenta cells to crank out adequate levels of the hormone human chorionic gonadotropin (hCG), which can be detected through a blood check. It's recommended for patients to chorus from getting a pregnancy take a look at instantly soon after embryo transfer. https://www.digitaljournal.com/pr/news/insights-news-wire/ivf-mexico-best-fertility-clinic-1465491918.html