Like normal pregnancies, staph pregnancies produce a hormone called human chorionic gonadotropin, which can be detected in the blood and is associated with early pregnancy, so most staph pregnancies also have symptoms and reactions of early pregnancy. The most common manifestation of a staph pregnancy is abnormal vaginal bleeding, which can be heavy or light. Of course, vaginal bleeding can have multiple causes in early pregnancy, except for other causes of abnormal bleeding. Other common symptoms include rapid increase in the size of the uterus; the absence of normal fetal development, so that the fetal heartbeat is still not heard at 10-12 weeks of gestation. Rare symptoms include severe nausea, vomiting, corresponding symptoms due to hypertension, and abnormal thyroid function. Once suspected, the diagnosis should be confirmed promptly by ultrasound, which mainly shows coarse dotted or falling snow-like images in the uterine cavity.