I have very irregular periods so i honestly dont remember my last date properly. Tested positive 3 days back. How do they figure out how far along i actually am? First appointment is next week.
Count from the first day of your last period, thats how they calculate weeks. The scan confirms it properly. If you dont remember your last period date, the ultrasound will still figure it out.
Easiest way, put your last period start date in any pregnancy app and it shows your weeks and due date instantly. But always cross check with the dating ultrasound because thats the real accurate one.
I didnt remember my last period date properly and was so confused. The dating scan sorted it out completely and gave me the weeks. So dont stress if you forgot, the ultrasound handles it.
Doctors usually count from the first day of your last period, so note that date down. But the most accurate way is the early ultrasound, my gynac said the dating scan gives the exact weeks based on baby's size. So go for that scan, it'll tell you clearly.
