What are the main symptoms of early pregnancy? First, menopause, no period when it should come, delayed menstruation, so just use a test strip to detect it, it may be pregnancy. Secondly, breast swelling and pain, because the estrogen level is relatively high, stimulating bilateral breast lobular hyperplasia, resulting in breast support and swelling. Third, weakness, many people have no strength after the first pregnancy. Fourthly, it can cause frequent urination and urgency. Because the uterus will increase in size after the first pregnancy, sometimes pressing the bladder, the symptoms of frequent and urgent urination will appear one after another. Fifth, it will cause melanin deposition on the nipples and areola, resulting in dark color.