1. **Blood Tests**: Complete blood count to evaluate red and white blood cell levels and platelets, and to detect possible anemia. Blood type and Rh factor to determine if your blood is Rh positive or negative, which is important to prevent incompatibility issues with the baby. Rubella, HIV, and hepatitis B tests to determine if you have been exposed to infections that could affect the pregnancy.
2. **Initial Ultrasound**: Transvaginal or abdominal ultrasound to confirm the location and development of the gestational sac and estimate the baby’s gestational age, usually done between 6 and 9 weeks of pregnancy.
3. **Infection Screenings**: Urine analysis to detect urinary tract infections and measure protein levels, which could indicate kidney problems or high blood pressure. STD tests for sexually transmitted diseases such as syphilis and chlamydia, which can affect the baby's health.
4. **Blood Glucose Test**: To evaluate blood sugar levels and detect gestational diabetes, typically in the second trimester.
5. **Pap Smear (if needed)**: If it has not been done recently, the doctor may recommend a Pap smear to detect abnormal cells in the cervix.
6. **Hormone Levels Test**: Measures levels of hCG (human chorionic gonadotropin) and progesterone to assess the health and development of the pregnancy in early stages.
7. **Genetic Screenings (optional)**: Screenings for chromosomal abnormalities, such as Down syndrome and other genetic conditions, based on the mother’s age or risk factors.