Hi ladies. Based on my LMP, I’m supposed to be 8 weeks 3 days pregnant today. However, I did not ovulate until around cycle day 18-20 (I received a positive opk at cycle day 18). When I went for my first ultrasound this morning, they told me that the baby is measuring more like 7 weeks 4 days with a strong heartbeat of 145 bpm. It kind of worries me that the baby is measuring 6 days behind, even though I know I didn’t ovulate until later in my cycle, whereas LMP assumes you ovulated exactly 14 days after the first day of your last period. My question is, which is more important? Gestational age or fetal age?