Hi guys! I had my first ultrasound about a week ago and I was supposed to measure 8 weeks based on my last period but I was measuring 6+4? Is that pretty common to measure that far behind? I got to see the heartbeat but not hear it. Also compared to my first pregnancy with my daughter my gestational sac was literally 4x that size by 7+1 so does that sac look a little small to you? My doctor didn’t say anything and I plan to ask him next time If it still looks small but to me it seems really small for being 6+4. What do you guys think?