super low baby movement in pelvic area???

I get twitches/movement really low in my pelvis like just right above my vagina/pubic hair area. (Sorry if that’s TMI). My baby is head down because the last two ultrasounds that was the position he/she was in and my OB said some babies will most likely stay in that position. So I’m not sure if the baby is head-butting me.

But anyways, I’m feeling movement and twitches really low, like EXTREMELY low which is worrying me because it’s like in my low pelvic area/pubic bone area and was wondering if that’s normal? I’m currently 23 weeks. I’ve never felt movement this low.