Disorders of the female reproductive system are relatively common. Some disorders are self-limited and cause only minor inconvenience to the woman. Other cases are life threatening and require immediate attention and long-term therapy. The complication that can happen after the evacuation is that if all of the tissue is not removed it can begin to grow again. This tissue can also metastasize like cancer and grow in other areas like the lungs, brain and vagina. The recommended action is that you do not attempt to have another pregnancy for the next twelve months following the molar pregnancy. If the molar begins to grow again the pregnancy related hormone will start to rise. A uterus that is abnormally large for the length of the pregnancy can be detected physically or when you go for test. It not so easy for people that have not taken an ultrasound as they might think they are having twins. First, is bleeding due to implantation in the uterus. As the embryo is attached to the walls of uterus at about 6 to 7 days after fertilization, bleeding is secreted from the vagina. The fertilized egg by itself is attached to the uterus wall, so slight spotting results from this process of implantation. HCG levels in early pregnancy can be detected approximately 11 days after conception by a blood test, and about 12-14 days after conception by a home pregnancy test, or urine test. In general, the HCG levels in early pregnancy should double every 48 hours in early pregnancy to indicate a viable pregnancy. This rate will increase to every 96 hours after a few weeks. Most miscarriages cannot be prevented because this is the body's way of stopping an unhealthy or abnormal pregnancy. Molar pregnancy is the presence and growth of an abnormal tissue instead of an embryo; on the other hand, an ectopic pregnancy is a pregnancy wherein implantation occurs in the fallopian tube instead of the uterus. Women often experience some nausea in the early stages of pregnancy. In most cases the symptoms are mild transient and easily managed by dietary modifications. In some cases however, the symptoms may be severe. Relentless vomiting can last the entire pregnancy and be associated with dehydration and weight loss. The quantitative blood test or the beta hCG test measures the exact amount of hCG in the blood. It can pick up very small amounts of hCG, thereby making this the best pregnancy test. If this test is repeated in 2-3 days and the beta hCG values are observed to have at least doubled, then this confirms that the pregnancy is continuing.