Weird Baby Kicks should I be Worried?

So I read that when baby kicks change you should call your doctor... since last night, off and on, I feel his kicks down by my bikini line and it feel like he’s tapping a foot like every second and a half. This rhythm will last for a few minutes. It feels like a pulsating feeling. Idk if it’s him or not. I’m calling my doctor tomorrow. Should I be concerned? I feel him moving around further up my belly too throughout the day and night which has been normal. 26 weeks!

Thanks