HCG is Doubling after miscarriage

Emily

So I need your guys opinion. I found out I was pregnant on on Saturday, but started bleeding heavily on Sunday. I went to the OBGYN and had bloodwork done and my doctor told me it was a miscarriage. I had bloodwork done two days later to make sure my numbers went down. Well I found out today that instead of my HCG going down, it doubled. They want me back in tomorrow to have another blood test done due to a possible ectopic pregnancy, but told me I won’t have results back until monday. I have one ovary that actually releases eggs, and if this is an ectopic and it ruins that ovary, it will be almost impossible to get pregnant again. I don’t want to wait and possible ruin my only good Fallopian tube. Would you guys go to the ER and ask for an ultrasound?