according to LMP i'm due 3/21, based off first scan 3/28, and now at 29weeks my son is measuring 31 almost 32 weeks and i just got a call that that puts me at an estimated due date of 3/9 which seems a bit drastic of a difference

the date on my most recent scan is from a clinic i've seen twice, for my original date scan and my most recent. my ob refuses to do ultrasounds after anatomy because of insurance only covering two, the anatomy and right before birth.