I had a chemical pregnancy on August 6th. My period was originally due that day too. I had an early positive test but a few days later started bleeding. Doctor confirmed it was a chemical. I started to try again right after I finished bleeding. I got a clear positive on September 6th. I thought I was around 7 weeks today. I went to the doctor and the doctor couldn’t even seen a sac today. On September 11th my HCG bloodwork was 154. On the 14th is was 514. And today the 26th it was 18315 and my Progesterone was 12. The doctor did see my lining was thick so he thinks I ovulated later and I might only be 4 weeks but it doesn’t make sense to me. He also said he wants to rule on a ectopic pregnancy in two weeks. But he doesn’t believe it’s that. Any advice please ?