Not a chemical ..?

Julie • Pregnant with my 🌈 Baby - IUI Success Baby

Ladies I am so beyond confused last week I received a positive that was ever so light on multiple tests at the same time I started bleeding and clotting I would’ve only been around 3-4 weeks .. rushed to the hospital my HCG was at 9 and I was advised it wasn’t a viable pregnancy and was a chemical ... I bled for 4 days ( stopped bleeding Sunday was in the hospital Thursday) ... out of curiosity I took a ovulation test & it was one of the darkest lines I’ve ever seen .. I had a spare test and BOOM darkest pregnancy lines I’ve seen .. I am so beyond confused .. anyone ever been told it wasn’t viable but continued to have a healthy pregnancy