Why are my tests getting darker?

So I found out I was pregnant about a week ago, lines were getting darker throughout the week and on Saturday I got a super dark line but then started spotting. I went to the ER the doctor was a complete ass and said it was my period and sent me home. Sunday was the same spotting and then Monday it got a little heavier but not super heavy and turned red. Later that night I passed two little things that looked like tissue and my fiancé took me to a different ER and they took urine said it was negative told me I was having a miscarriage and sent me home. I also had blood levels drawn Monday at my regular doctor before going to the ER and they were 33.7. Two days later I’ve almost stopped bleeding and I tested to make sure my lines were getting fainter since my levels weren’t that high anyways and my test is wayyy darker. Is there a chance that maybe I didn’t miscarry or is this normal. I tried calling my OB and can’t get through