Pregnant but ..so worried I can't get excited

So I'm finally pregnant for the very first time. (Was ttc for 6 months) All the test show positive and had a few early symptoms like sore nips and nausea. It's something my husband and I have dreamed of for a long time but now it's finally here... it's like I'm expecting to miscarry. I'm normally a really positive upbeat person.

I read all the messages of people being excited and I just can't get excited in the same way. Probably because I'm protecting myself from getting to hurt if it goes wrong. I can't think ' great im pregnant and due in April' I'm thinking 'I MIGHT be pregnant and this is a long road and I may we'll get very hurt. '

Lots of people talking about 'hoping it's sticky baby' how can you tell? What can you do to increase your chances? And for those who sadly have miscarried when is the most likely time? Do I need to just pray I get past a certain window before risk reduced dramatically and I can finally get excited?

Any advice?