The presence of a fetal heartbeat does not necessarily mean that a pregnancy is safe. Pregnant women need to take precautions during the first trimester of pregnancy, when the fetus is not yet formed and the situation is relatively unsafe. Generally, the presence of fetal heartbeat and buds can be observed during ultrasound examination in the sixth week of pregnancy, which indicates that the embryo has survived. However, the presence of fetal heartbeat does not mean that the entire pregnancy is in a safe state. In the first trimester, because the fetus is not yet formed, it is easy to have a miscarriage, which is an unsafe state. Therefore, after observing the fetal heartbeat, pregnant women should have a regular routine, ensure sufficient rest time, and do not overwork. At the same time, avoid having intercourse too early, especially in the first trimester to avoid miscarriage. In early pregnancy, pregnant women need to follow the doctor’s instructions on time, so as to understand the growth and development of the fetus. Once the body abnormal discomfort, need to pay attention to, timely consultation, follow the doctor’s instructions to deal with treatment.