Confused!!!!

April • happily married, 3 miscarriages, loving motherhood, 1 child

So I had my first doctors appointment and baby is measuring at 7 weeks, but when the doctor did the ultrasound she saw something else in there. She wasn't sure if it was another baby or what. The one with,the line on it is the baby its the circle part we don't know if its a baby or not. Can you tell at all what it is?