Can a childless author write believably about motherhood?

Can a childless woman write believable stories about pregnancy, babies and raising children? That’s something I often wonder as I write my novels and stories. In my most recent book, nobody has babies. My main character, PD, and her late husband were never able to conceive. The people she interacts with either don’t have kids or have children who are grown up. That’s pretty much what my life is like, too, although PD’s story is not about me.
I recently read a wonderful book by Oregon author Monica Drake called The Stud Book. It’s not what you think. The title comes from the records zookeepers keep of the animals’ mating and breeding activities. However, in addition to the zoo animals the character Sarah is monitoring, she and her friends are all dealing with babies. Sarah keeps having miscarriages but desperately wants a baby. Georgie just gave birth to her first child, and Nyla has two older kids but is now pregnant again. The author, who is a mom, describes their experiences in such great detail that it’s obvious she has experienced this stuff. The chapters about Georgie and her new baby are so real they must have been based on real life. Drake seems to know exactly how the C-section stitches feel, how the breasts feel when she’s nursing, and how it feels when the baby’s skin touches her own.
I don’t know these things. I can guess. I can imagine. I can ask other people to describe them. I can read and search the Internet, but down deep, I’m faking it. Does that mean I can never create fictional characters who have babies? Then again, can I write about men, people of color, people of different religions, people working jobs I’ve never done, or people younger or older than I am? I hope, with enough imagination and research, I can write about all kinds of fictional characters, but I wonder if that’s true.
What do you think?