Bleeding during pregnancy can be concerning, but it is not uncommon to experience some spotting or light bleeding in the first trimester. However, if you are experiencing heavy bleeding, severe cramping, or passing large clots, it is important to seek medical attention immediately as these could be signs of a more serious issue. In some cases, bleeding can occur later in pregnancy due to conditions such as placenta previa or placental abruption. It is always best to consult with your healthcare provider to determine the cause of the bleeding and ensure the health and safety of both you and your baby. They may recommend further tests or examinations to rule out any potential complications.