HELP!! Baby facing towards my back? 😰

I’m 18 weeks pregnant and until last Wednesday, I was feeling my baby girl’s movements very distinctively, like she was facing my belly button, so they were strong and easily noticed. But since this Thursday I’m having a hard time identifying her movements because it feels like she is facing towards my back now, with her back against my belly. I feel her movements, but it's much less since she apparently turned. I feel jabs/kicks internally, like the movement was “deeper” and lighter, backwards my uterus. It’s freaking me out. Did anyone go through this? Is it ok? I’m terrified. On my first pregnancy I didn’t experience this, so please, help me out here! My next appointment with my Gynecologist is on December 15th, so far! 😰😔