Having issues in pregnancy

I’m 6 weeks and 5 days pregnant. I’m having dropping levels in my HCG from 198 to 170. My progesterone is at a 2. Not to mention I’m starting to have high blood pressure issues. Like 140/90. My doctor will not see me they just keep saying they are going to do blood test. Haven’t gave me a ultrasound to check on things even tho the er diagnosed me with a threaten miscarriage because I’ve been cramping and spotting brown. I don’t know what to do or if I should get a second opinion. I’ve had high risk pregnancy with 2 of my other kids. I feel like I’m just cattle being shoved around. Help!!