An ovulatory endometrium of 0.6 centimeters, or 6 millimeters, will not adversely affect pregnancy.
The functional layers of the endometrium are regulated by changes in ovarian hormones, and there is a cycle of proliferation, secretion and shedding, so the thickness of the endometrium varies throughout the menstrual cycle.
Generally, the endometrium reaches a thickness of 3 to 5 millimeters on the 11th to 14th day of menstruation. This is when the follicle is basically close to maturity and the endometrium gradually thickens. Generally, about one week after ovulation, which is the time for the fertilization of the egg, the thickness of the uterine lining will reach 8 to 10 millimeters, which is most suitable for the fertilization of the egg.
So it is normal for the endometrium to be 6 millimeters at the time of ovulation because it will continue to thicken after ovulation.