Just found out that I am pregnant, and I am scared.?

I just found out that I am pregnant. My husband is elated, and I am too, but I am also scared and nervous. I don't feel prepared, though. I am 23 years old, going on 24 years old. I own a house, have a government job with benefits, and have my mother's support. I have a degree is Forensic Psychology and I work at nights in the courthouse. I am still nervous because finances are very tight, and I want to provide everything to this baby. Are these thoughts normal?