Luteal phase & implantation – the 2 weeks after transfer

After the follicle is punctured, a corpus luteum develops from the follicle. The two weeks following the puncture are called the luteal phase. Implantation of the embryo occurs approximately seven days after egg retrieval.

In conventional IVF, progesterone is administered during the luteal phase. This progesterone is harmless to you, but may be uncomfortable and bothersome.

Our studies have shown that in most cases, natural IVF does not require progesterone. Therefore, the luteal phase is completely natural, and the embryo implants under the influence of your natural hormone production.

A pregnancy test is usually performed in the blood approximately 14 days after the follicle puncture.