Ordinarily, it will take a number of weeks for that placenta cells to generate ample amounts of the hormone human chorionic gonadotropin (hCG), that may be detected via a blood exam. It really is advised for people to refrain from taking a pregnancy examination straight away just after embryo transfer. https://www.digitaljournal.com/pr/news/insights-news-wire/ivf-mexico-best-fertility-clinic-1465491918.html