If a woman exhibits no symptoms or indications of pregnancy and fits any of the following conditions, a healthcare professional can be relatively assured that she is not pregnant: is 7 days following the onset of regular menstruation. Has not had sexual relations since the beginning of her last regular menstrual period (NPRP). Has a negative pregnancy test. In addition, if a woman is unsure about her pregnancy status but believes it may be so, she can take advantage of our prenatal screening tests. These include the hCG blood test and nuchal translucency scan. The hCG blood test measures the level of hCG in the blood. This test can detect pregnancy as early as 6 weeks after the first day of menstruation. The nuchal translucency scan looks at the thickness of tissue around the baby's neck to see if he or she is growing inside the womb. This scan can also detect problems with the fetus prior to birth. A healthcare provider will perform a physical examination and review your medical history in order to determine whether you are pregnant and, if so, how far along you are gestation. He or she will also conduct a breast exam to look for abnormalities. If necessary, other tests, such as blood work or ultrasound, may be performed to rule out pregnancy complications such as diabetes or hypertension.