Weird back pain?

So I know it's not a sign of labor or anything, I'm more just trying to see if this is a pregnancy thing or a "my body is stupid" thing. A couple of times a week for the past few weeks ill get this pain that feels almost like I'm being stabbed straight through from my belly button to my spine. It's bad enough i usually have to stop moving and hold onto a counter or something and try to breathe through it and it lasts for a minute or 2. But then it won't happen again for a few days. Anyone else dealing with that?