Miscarriage Sign (Didelphic Uterus)

Hi everyone I'm pregnant with my first baby and I should be 7 weeks 2 days. I just went to the Dr. yesterday and I was upset because she rushed through the whole process and didn't listen to me or answer any of my questions or concerns. I'm considered a high risk pregnancy because I have mullerian anomaly called Didelphic Uterus. I have been spotting since 2 days after I had a positive hpt and it turned into heavy bleeding. Today it's worse it looks like I started my period :/ I'm so sad at this point I have no idea what to do or think! While I was getting my ultrasound done at my Dr. office they couldn't tell if my baby is in one of my uterus' but they think they saw it? It upsets me because I couldn't even get a pregnancy confirmation! I have to go back for more blood work within 2 days to determine if my hormone levels increase or not. I hate my Dr. at this point I am going to switch ASAP! Now I'm cramping and bleeding heavily I just know I'm miscarrying :( can someone please help me? I'd greatly appreciate it thank you and God bless!