Hiccups?

First time mom and never experienced fetal hiccups. In the last couple of days I’ve been feeling a small pulsing like sensation deep within my belly. I know my baby is head down and the feeling I’m getting is near my panty line. It feels more toward the center of my body and not on the surface like kicks do sometimes. The couple of times I’ve felt it it has felt like a tiny kick every couple of seconds and lasts for 5-10 minutes. Are these hiccups? Anything to be concerned about?