Please help!!!!!

TELETHA • 6th pregnancy two live births. Ive had a tubal ectopic and 3 miscarriages. We are so blessed to have this baby and we cant wait to meet our little bundle 💙💖

I had my first scan measuring 6 weeks and 4 days and today i am supposed to be 8 weeks but at the ultrasound baby is measuring 6 days behind.

Has this happend to anyone and what happend? Im so nervous and worried