The Beta hCG (human chorionic gonadotropin) test is commonly used to:

1. Confirm Pregnancy: Beta hCG is a hormone produced during pregnancy. It can be detected in blood or urine tests a few days after conception, making it one of the earliest markers of pregnancy.

2. Monitor Pregnancy Progress: The levels of Beta hCG in the blood can help monitor the progress of the pregnancy. Rapidly increasing levels typically indicate a healthy pregnancy, while slow-rising or declining levels might suggest a problem such as an ectopic pregnancy or potential miscarriage.

3. Detect Multiple Pregnancies: Higher than normal levels of Beta hCG might indicate a multiple pregnancy (twins, triplets, etc.).

4. Screen for Potential Issues: Abnormal levels of Beta hCG can be associated with certain conditions such as molar pregnancy, where abnormal tissue grows inside the uterus.

5. Diagnosis of Pregnancy-related Health Issues: In some cases, doctors use Beta hCG tests to diagnose pregnancy-related issues such as trophoblastic disease or certain types of cancer like choriocarcinoma.

6. Assist in Fertility Treatments: For individuals undergoing fertility treatments, Beta hCG tests are used to confirm successful implantation of an embryo.

Overall, the Beta hCG test is a vital tool for early pregnancy detection and management, providing valuable information to ensure the health and safety of both the mother and the developing fetus.