So it was still days left for my periods to get start , I took my urine test and got faint lines. On the Day I was supposed to get my period I decided to have beta Hcg and it was 26.61 mIU/mL ( which was a borderline pregnancy) after a week(TODAY) I experienced period like cramping and brown discharge. I went to the hospital for check up. And they took another beta Hcg test because Dr couldn’t find the sac (as it was 5weeks 3days) . The result was 18.21 mIU/mL. They told me that it was a chemical pregnancy and it will be clean naturally. Now it has turned out to be heavy blood flowing and bad cramps..any chance that it might be implantation Bleeding? Or the Dr is right?