What Is Implantation (Attachment)?

Implantation is the embryo attaching to the uterine lining (the endometrium) and beginning to develop — in other words, the actual beginning of pregnancy. It takes place within a few days after embryo transfer.

Successful implantation requires both a healthy embryo and a uterine lining of sufficient thickness that is ready to receive it. For this reason the uterine lining is monitored by ultrasound during treatment and prepared for pregnancy with progesterone support.

To improve implantation, Clavis uses additional methods such as blastocyst transfer, AI-assisted embryo selection and, where needed, embryo glue. In recurrent implantation failure, further investigations and PGT are considered.

Key Points

• The moment pregnancy actually begins
• Occurs within a few days after transfer
• Uterine lining thickness and embryo quality are decisive
• The uterus is prepared with progesterone support