Please share your experiences!

So i just found out today that i am pregnant. My fiance and I were not trying but also not preventing. We are excited but i am feeling nervous as the hours go on. We live in an apartment for $695/month, make $20 an hour total, and i feel as though we are kind of young. I am 24 and he is 25. When we discussed it months ago we thought we were ready. Now that its reality I'm nervous. Did anyone else feel this way when baby dreams became a reality?