Young parent anxiety

Kim • Loving life ,and married to the love of my life.Happily married for a year , and now working on having our first child.
My wife is 24 and I am 20 will be 21 in August and I'm having new parent jitters .I am excited and afraid at the same time of what to expect and what's to come. I want this baby ,but now that I'm pregnant I don't know if I'm ready . Any advice?