An endometrial thickness of 11mm does not necessarily mean that you are pregnant, if the test is done before your period, when the lining is just close to that of an approaching period, it does not necessarily mean that you are pregnant. This is because pregnancy can cause a thickening of the lining of the uterus, and there is always a thickening that may be around 13-14mm. To buy early pregnancy test paper, about 12 days after intercourse can be tested to rule out the chances of pregnancy, the chances will be accurate judgment. If menstruation comes normally, it means that there is no conception, and the chances of getting pregnant at the time of coitus are greatly increased, at least 60% of the chances of pregnancy will exist. If in the middle of menstruation, that is, ovulation endometrial examination, 11mm is not a manifestation of pregnancy, there are abnormalities, because the normal time ovulation will not be so thick, consider the existence of estrogen bias, to carry out hormone examination to rule out any abnormality.