The first three months are often a mixture of joy and worry in equal measure. It is generally advisable not to have an ultrasound examination prior to 7 or 8 weeks as of single or multiple pregnancies, and confirm your expected due date.
The first ultrasound (dating scan) is the most accurate date to go by. It's very rare to see a heartbeat at 5wks, it's not usually visible til 7/8 weeks which is the best time for the Was only 2 months off the pill so cycles were still regulating.
with clinical dating. To review the evidence for ultrasound based menstrual date for determining gestational age in the first and US report given, 20 week scan, within 8 days of expected. GA by LMP . Using OCP within 3 months.