I was exactly the same. Still sort of am. I now have my beautiful baby, but somehow it's all surreal.
It will sink in eventually. I tried to do something once a day that I felt helped me accept the pregnancy and that all was ok, like rub my belly, allow myself to dream of the child and what it will look like. Sounds silly, but after 2 m/c just putting my mind in a positive space was a step forward to acceptance.
A Doppler helped too!