How do you know if the endometrium is receptive?

There are different ways of measuring the receptivity of the endometrium, these include:

• Endometrial biopsy: a small incision is made in the uterus to obtain a sample of endometrial tissue and analyse its structure and receptivity.
• Endometrial receptivity test (ERA): this test uses a small amount of endometrial tissue to analyse gene expression and determine the receptivity of the endometrium.
• Ultrasound: a transvaginal ultrasound can be used to measure the thickness and structure of the endometrium and assess its receptivity.
• Blood tests: Blood tests can be performed to measure progesterone and oestrogen levels, which are indicative of endometrial receptivity.

It is important to mention that although these tests can be useful, they do not guarantee a successful pregnancy, as endometrial receptivity is only one of many factors that influence the implantation and development of a pregnancy.