Movement at 26 weeks

I’m 26 weeks today and while I do feel my baby move every day, it’s still wildly inconsistent. Some days he never seems to stop moving, but then I’ll have almost a whole week of much less movement, or the movement will feel overall weaker. It’s making me so anxious and I’ve already been evaluated in L&D for monitoring twice over the last week because I was so nervous about it. I have a posterior placenta and all the books seem to imply I should be feeling him a whole lot more than I am. Anyone else experience the same? When did your baby’s movement develop a pattern/become consistent?