Although bleeding in the early stages of pregnancy can be rather worrying, it is actually very common. There are many reasons behind bleeding in the early stages of pregnancy.
Firstly, it may be related to the fertilized egg (受精卵). Slight bleeding might appear after a day or two when the egg is implanted in the uterus. The placenta (胎盘) implantation in the lining of the uterus can also cause a small amount of early pregnancy bleeding. Sometimes, pregnant women will also experience breakthrough bleeding (突破性出血).
Although the pregnancy hormones covers up the original hormonal and physiological cycle of pregnant women, hormonal changes will still continue. The cyclical changes due to the hormones in the body results in some pregnant women bleeding before and after their usual menstrual period. Sometimes, due to cervical erosion (宫颈糜烂/子宫颈变软), pregnant women will encounter bleeding in the early stages.
Secondly, early pregnancy bleeding can also be due to cervical (宫颈) infection or polyps (息肉) related. Bleeding may also occur after sex. However, a small amount of bleeding in early pregnancy is sometimes difficult to determine the cause of it.
If you encounter any bleeding during pregnancy, whether it is during the early stages or later stages, it would be wise to inform your doctor. Usually minor bleeding during early pregnancy is not considered to be a serious problem. However, if you experience a red or a flow of blood, especially if it is being accompanied by abdominal pains or cramps, seek immediate treatment. This may be a sign of miscarriage (流产) or ectopic pregnancy (宫外孕). In the later stages of pregnancy, bleeding may be a problem to the placenta.
It is recommended that if you experience any bleeding during the early stages of pregnancy, you should go to the hospital for an examination. The doctors are the experts in this area and they will be able to advise you on the precautions to take. Most of them will continue to observe you in the early stages of pregnancy bleeding. Usually after 3 months of pregnancy, the fetus is relatively safe. Prevention is always better than cure. Hence, it will always be wiser to take precautions and seek medical advice although the cost might be quite steep. Nonetheless, it is always better to be safe than sorry.