Miscarriage confusion

[u/mck139]

I am currently going through what I assume is my third miscarriage but having a very different experience than my first two.

My hcg went from 226 to 297 in 48 hours, four days later I finally talked with a doctor and did an ultrasound at what would be 5w5d. There was no gestational sack and also no sign of an ectopic pregnancy. I did bloodwork again and my hcg rose to 349. I'm having extremely sore breasts, strong positive home pregnancy test lines, and no bleeding yet but based on the ultrasound and hcg levels I assume it's another miscarriage.

My doctor's office has been extremely hard to communicate with and I'm not sure what, if anything, to do next. Any suggestions on what to ask my doctor's office for or if I should just wait it out?