Tampon stuck in vagina?? Or cervix

Is there supposed to be something in your vagina. I’m not sure if I took my tampon out but when I have sex I feel something more being pushed inside me and a felt this soft cushion like thingy trying to figure out what it was. I’m not sure if it’s supposed to be there Or a tampon.it might be my cervix but I’m nit sure. My middle finger reaches it and I’m not sure if that’s good or not