Measuring 7 weeks 5 days but I’m 8 weeks 2 days

So backstory is I had some spotting went to the ER they did an US baby measured 7 weeks 5 days with a great heartbeat.

Today about 4 days later I had ANOTHER US and I’m still at 7 weeks 5 days. BUT it seems like she measured me wrong? Like there’s the baby but then there’s something right next to it? One was transvaginal and this was abdominal so I’m guessing that’s why there’s confusion. She didn’t seem concerned. Just wanted me to come in 4 weeks from now for regular procedures.