Title: Prenatal care: 1st trimester visits - Mayo Clinic
Headings: 
Prenatal care: 1st trimester visits
The 1st visit
Medical history
Due date
Physical exam
Lab tests
Screening tests for fetal abnormalities
Lifestyle issues
Normal discomforts of pregnancy
Other 1st trimester visits
Products and Services

Content: It allows your health care provider to monitor your baby's growth and the progress of your pregnancy, as well as schedule tests or procedures at the most appropriate times. To estimate your due date, your health care provider will use the date your last period started, add seven days and count back three months. The due date will be about 40 weeks from the first day of your last period. Your health care provider can use a fetal ultrasound to help confirm the date. Physical exam
Your health care provider will typically check your blood pressure, measure your weight and height, and calculate your body mass index to determine the recommended weight gain you need for a healthy pregnancy. Your health care provider might do a physical exam, including a breast exam, pelvic exam, and screening exams of your heart, lungs and thyroid. You might need a Pap test to screen for cervical cancer as well, depending on how long it's been since your last screening. Lab tests
At your first prenatal visit, blood tests might be done to: Check your blood type. This includes your Rh status.