Hi ladies. How exactly do docs determine how far along you are with your pregnancy if you not sure about your last period? According to my doc il be 33weeks tomorrow. But i honestly feel like i can be a week or even 2 further. My systomps are always ahead and everyone says i am carrying VERY big for 33weeks. My 1st baby was born at 38week according to my gynea but according to the perdiatrition he was 42 weeks at birth.
I was wondering the same thing since I had my period literally twice or three times a year and got pregnant last year. They measured how far along I was with the ultrasound, though and gave me an estimate.