Am I an Author?

I've always wanted to write a book. I just never had the creativity for storylines, plot twists, character development...pretty much everything that writing a book entails! I had never considered writing non-fiction (they're usually the boring books!), but then I realized: They say, "Write what you know" and right now I know babies! So, I am in the process of writing a book about pregnancy and parenting. Of course, since I'm no expert, it's not a how-to handbook but rather a light-hearted, humorous (hopefully), candid look at those times.