Many moms decide to stay at home with their babies and if they can write about it,they can learn to earn a little from writing online. Many others don't have that choice, and have to put off their writing til later.
With the advent of online submission for writing pieces, the choice has widened out and there's everything from short stories, poetry, articles and reviews to consider.
Don't think you can do it? Well, other parents are always looking for good product recommendations so...what did you think of that last diaper brand you tried? While you won't get rich rich quick, you will learn by trial and error the online writing craft - ready maybe for a freelance writing career once baby goes to school.....
How about trying a review: Review Writing Tips-Practice On Amazon