Concerned about kick counts

I’m 27 weeks today and already nervous about kick counts next week. I’ve tried to establish a pattern these past few weeks with baby’s movement and haven’t really been able to distinguish one. Baby moves and most of the time when she does I’m able to count kicks but I’m worried about not being able to establish a pattern, it’s not like she moves at an exact time every day. She’s not the most active of babies as is so I’m just worried…anyone else experience something similar or have words of comfort? I plan to share my concerns with my OB at my next apt as well…