Hi Jessey,
From what I understand you can rent dopplers from the chemist, although they aren't 100% reliable.
My advice would be maybe to contact your local women's hospital, explain that you're pg and that you miscarried early in your last pregnancy, they may set you up with some appointments and a dating scan (so you'll get to see your bub).
They may be able to organise shared care or have some system set up so that you have an ob &/or midwife in your area or at the hospital itself....
I don't know exactly what they'll do but I'm sure they can point you in the right direction; it can all be pretty daunting to start with, so good luck.