What does implantation feel like in early pregnancy? Pregnancy is a big event for every woman, but in the early stages of pregnancy, many women may not feel obvious symptoms, including implantation discomfort. So, what is implantation discomfort? What are the symptoms of implantation discomfort? In the early stages of pregnancy, many women may feel some uncomfortable symptoms, such as: breast swelling and pain, nipple itching, low back pain, slight vaginal bleeding, etc. These symptoms are symptoms of implantation discomfort. Among them, back pain and breast tenderness are relatively common symptoms, mainly caused by endocrine disorders in the body.