Girls, please tell me Delay for 6 days, tests all bright and striped …

Girls, please tell me Delay for 6 days, tests all bright and striped already 1.5 weeks...went for an ultrasound to exclude ectopic, because I had back pain...found a fetal egg 2mm, yolk sac 1.3, endometrium 1.2...wrote pregnancy of a small term, and besides, the doctor said that he hasn't attached yet...Has anyone experienced this? I'm so worried, will it attach ?