Chest pains and stomach pains are not the only way to tell if you are pregnant. Due to individual differences, each person does not feel exactly the same when they are pregnant. Most people will experience chest pains in the early stages of pregnancy, accompanied by vague stomach pains, but similar sensations may occur before the onset of menstruation, while some people do not experience any discomfort after pregnancy, or even find out that they are pregnant for a long time. There are two ways to diagnose early pregnancy: 1. urine pregnancy test, simple and easy to use, buy at the pharmacy by yourself, five dollars a piece, 3-5 minutes to get the result, at a glance. 2. blood test for beta-HCG, earlier than the urine pregnancy test, but also accurate.