When is hcg produced after fet?

Human chorionic gonadotropin (hCG), a hormone produced by the developing embryo, can be detected in the blood as early as 8-10 days after the transfer of a fertilized egg during in vitro fertilization (IVF) with fresh embryos. If frozen embryos are used, it can take a few days longer.

After a frozen embryo transfer (FET), the timing of hCG production may differ slightly. Here's a general timeline:

6-10 days post-transfer: The embryo begins to implant into the uterine wall.

10-14 days post-transfer: The implanted embryo starts producing hCG.

Around 14-16 days post-transfer: hCG levels can be detected in a blood test.

It's important to note that hCG levels can vary from woman to woman and between pregnancies, so the exact timing of hCG detection may differ. A doctor will interpret your specific blood test results and advise accordingly.