Please choose the correct ending to complete the given sentence: Health: [header] How to get an ultrasound for pregnancy [title] Understand the importance of the ultrasound exam. [step] The ultrasound exam is used to evaluate the fetus' growth and development, and to determine how the pregnancy is progressing. Two ultrasound exams are performed over the course of your pregnancy-one in the first trimester and one in the second.

Ending1: [substeps] The first trimester ultrasound is used by health care providers to confirm and date the pregnancy, so you will get a fairly accurate idea of your due date. This ultrasound can also be used to check for the presence of more than one fetus. Ending2: [title] Schedule a consultation with a technician who is experienced at creating ultrasound for the baby. [step] Once you have a detailed understanding of the patients your doctor conducts the ultrasound for, the technician can tailor the ultrasound to those who are best evaluated in the first trimester. Ending3: These are also referred to as " negative trims. " [substeps] Negative trims might include: having a bleeding disorder between the second trims. Ending4: [substeps] These exams may be performed during the third trimester of your pregnancy, once you are pregnant and you have a baby. [title] Do not lie down for the exam.

Answer format: ending1/ending2/ending3/ending4