Two pregnancy tests are usually a good indicator of pregnancy, but not always accurate. Chest swelling and pain may be caused by pregnancy, but hormone level changes, emotions, etc. can also be caused. 1. two pregnancy tests: two positive pregnancy tests may indicate pregnancy, but the test must be interpreted within five minutes, and there may be a certain chance of inaccuracy, you should go to the hospital to further determine whether you are pregnant. 2. Chest pain: pregnancy can cause chest pain, but not only pregnancy can cause chest pain, female puberty and emotional fluctuations can occur hormone level changes, causing chest pain; breast hyperplasia, mastitis and other diseases can also cause chest pain. In clinical practice, when a woman takes two pregnancy tests and operates them correctly, the probability is that she will be diagnosed as pregnant, and she can go to the hospital for further blood tests.