Listen, I'm not here to advocate anyone have more fights than the bare minimum. Ever. However, sometimes, like when you have a new baby at home, fights are fantastic learning experiences for you and your partner, that will eventually help the two of you get (and remain) on the same page. In fact, there are certain fights you should have with your partner when you're new parentsin order to iron out any wrinkles you may or may not have, before they grow bigger (and more bitter) in the future. Plus, some of those flights are just downright unavoidable when you've got a tiny new babe at home, so you might as well just get them over with.
Of course, it's worth mentioning that there's a healthy and unhealthy way to "fight," and if you're in an abusive relationship "fighting" is never, ever, OK. When I talk about "fights," I'm really talking about disagreements that could be escalated by the cruel realities of new parenthood, but are never abusive or dangerous. Sleep deprivation definitely gave me a shorter fuse when I was a new mom, and that short fuse led to more than a few less-than-diplomatic efforts when I was frustrated by something.
My husband and I don't fight very often, but those first few months of family life were hectic and, as a result, both of us were a little anxious. Those fights did help us figure out expectations and systems so we could be less anxious and have fewer fights in the future, though, so in the end I am very grateful they were part of our journey into parenthood.