Usually, it will take several months for that placenta cells to deliver sufficient amounts of the hormone human chorionic gonadotropin (hCG), which can be detected by way of a blood take a look at. It's recommended for clients to refrain from using a pregnancy examination right away following embryo transfer. https://www.digitaljournal.com/pr/news/insights-news-wire/ivf-mexico-best-fertility-clinic-1465491918.html