How do I ease my worries being newly pregnant???

I have had two miscarriages then I got pregnant with my son but was put on progesterone, now I’m pregnant again, I literally found out yesterday and my doctor (who I haven’t see just yet) put a call in at the pharmacy so I can get on progesterone again but it’s like I’m scared to be excited or happy because I literally feel like miscarriage is right around the corner. I haven’t gotten the call from the pharmacy that my proscription is ready, they said it can take a couple days. 😩