An ultrasound can help you determine how far along you are in your pregnancy. Before you consider abortion or seek an abortion clinic, it is important to know how many weeks pregnant you are the gestational age. Even when you can remember when your last menstrual period began, ultrasound can still be more accurate than relying on your last period date alone.
How accurate is a dating ultrasound at 9 weeks Your first trimester.
You can calculate your due date by subtracting three months from the first day of your last menstrual period LMP and then add a week. Use our pregnancy calculator. A pregnancy is based on being days long, which is 40 weeks more like 10 months not 9!
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