Measured a week behind

Hello everyone! I just have some concerns and I would really appreciate it if y’all could help me out and give me some hope. I went to the hospital a few weeks ago with bad bleeding found out I have a subchorionic hemorrhage, I then went to my ob a couple days later and they measured me at 5weeks 6 days. I had another appointment about a week after that then another one just yesterday and I was supposed to be 7 weeks 4 days but they only measured me at 7 weeks 1 day and that’s after telling me I’m supposed to be 8 weeks 1 day from my LMP. I’m very confused on why it keeps going back a couple days when I go in. This is my ultrasound picture from yesterday at 7 weeks 1 day, does this look normal?