measuring a week behind

Samantha • Momma of an angel 2.17 👼🏻 Landon Nicholas 12.4.17 🌈 Pot of gold baby due November 2019. 💜
I went in for my ultrasound Friday for my rainbow baby at 7 +2 but baby only measured 6 weeks. There was a heartbeat of 130 though. I started bleeding 2 hours before my ultrasound and it stopped after 6 hours. The doctor on call didn't seem worried. I'm waiting for my doctor to call back but I'm so scared. Is anyone else measuring small?