Pre-jitters.

Sierra • Hi! My name is Sierra. & I`m a momma of a two year old girl (:
Last month SO & I TTC but for some reason this month.. After not having AF for 2 months (Due to stopping the pill) in beginning to feel pre-jitters! I'm so worried that I won't be a great mom. 
I been taking care of kids all my life as a nanny and a sitter and my sweetheart and I want this the most but I'm so worried now. 
Also, I'll be 22 but I have such a young face and in worried others will look down on me. I guess I just need a little courage.