Chemical Pregnancy?

I had 6-7 positive home pregnancy tests. I went to the doctor the urine came back negative so they did a blood test which i had to wait a day for. they called back the next day and scheduled a video call with my doctor. she said my hcg came back 8 so she said there was a pregnancy but you're probably going to have a miscarriage. its most likely a chemical pregnancy but i might be wrong so i want u to come in tomorrow for another blood work. that was today so i went in the morning. now i have to wait for the results until monday. I've been cramping really badly since yesterday and i just started bleeding. Am i going through a miscarriage? its after office hours and they're closed for the weekend so idk wat to do.